Home / 5,132.43-7,089.66-3,930.17

Finding the Fourth Proportional to 5,132.43, 7,089.66 and 3,930.17

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Solution

The fourth proportional to 5,132.43, 7,089.66 and 3,930.17 is: 5,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.43 : 7,089.66 = 3,930.17 : x
  2. Step 2: Convert to fraction form
    5,132.43/7,089.66 = 3,930.17/x
  3. Step 3: Cross multiply
    5,132.43x = 7,089.66 × 3,930.17
  4. Step 4: Simplify right side
    5,132.43x = 27,863,533.59
  5. Step 5: Solve for x
    x = 27,863,533.59/5,132.43
  6. Step 6: Final answer
    x = 5,428.92

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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.