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Finding the Fourth Proportional to 5,368.50, 8,053.47 and 1,905.75

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Solution

The fourth proportional to 5,368.50, 8,053.47 and 1,905.75 is: 2,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.50 : 8,053.47 = 1,905.75 : x
  2. Step 2: Convert to fraction form
    5,368.50/8,053.47 = 1,905.75/x
  3. Step 3: Cross multiply
    5,368.50x = 8,053.47 × 1,905.75
  4. Step 4: Simplify right side
    5,368.50x = 15,347,900.45
  5. Step 5: Solve for x
    x = 15,347,900.45/5,368.50
  6. Step 6: Final answer
    x = 2,858.88

Related Problems

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Half scale
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Double scale
Find fourth proportional to 5,369.50, 8,054.97 and 1,906.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.