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Finding the Fourth Proportional to 6,076.40, 9,114.60 and 5,817.20

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Solution

The fourth proportional to 6,076.40, 9,114.60 and 5,817.20 is: 8,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,076.40 : 9,114.60 = 5,817.20 : x
  2. Step 2: Convert to fraction form
    6,076.40/9,114.60 = 5,817.20/x
  3. Step 3: Cross multiply
    6,076.40x = 9,114.60 × 5,817.20
  4. Step 4: Simplify right side
    6,076.40x = 53,021,451.12
  5. Step 5: Solve for x
    x = 53,021,451.12/6,076.40
  6. Step 6: Final answer
    x = 8,725.80

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Half scale
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Double scale
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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.