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Finding the Fourth Proportional to 7,036.71, 9,710.53 and 3,892.90

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Solution

The fourth proportional to 7,036.71, 9,710.53 and 3,892.90 is: 5,372.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,036.71 : 9,710.53 = 3,892.90 : x
  2. Step 2: Convert to fraction form
    7,036.71/9,710.53 = 3,892.90/x
  3. Step 3: Cross multiply
    7,036.71x = 9,710.53 × 3,892.90
  4. Step 4: Simplify right side
    7,036.71x = 37,802,122.24
  5. Step 5: Solve for x
    x = 37,802,122.24/7,036.71
  6. Step 6: Final answer
    x = 5,372.13

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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.