Home / 3,143.07-4,337.36-1,817.19

Finding the Fourth Proportional to 3,143.07, 4,337.36 and 1,817.19

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Solution

The fourth proportional to 3,143.07, 4,337.36 and 1,817.19 is: 2,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.07 : 4,337.36 = 1,817.19 : x
  2. Step 2: Convert to fraction form
    3,143.07/4,337.36 = 1,817.19/x
  3. Step 3: Cross multiply
    3,143.07x = 4,337.36 × 1,817.19
  4. Step 4: Simplify right side
    3,143.07x = 7,881,807.22
  5. Step 5: Solve for x
    x = 7,881,807.22/3,143.07
  6. Step 6: Final answer
    x = 2,507.68

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,144.07, 4,338.74 and 1,818.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.