Home / 4,781.12-7,171.68-2,471

Finding the Fourth Proportional to 4,781.12, 7,171.68 and 2,471

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Solution

The fourth proportional to 4,781.12, 7,171.68 and 2,471 is: 3,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.12 : 7,171.68 = 2,471 : x
  2. Step 2: Convert to fraction form
    4,781.12/7,171.68 = 2,471/x
  3. Step 3: Cross multiply
    4,781.12x = 7,171.68 × 2,471
  4. Step 4: Simplify right side
    4,781.12x = 17,721,221.28
  5. Step 5: Solve for x
    x = 17,721,221.28/4,781.12
  6. Step 6: Final answer
    x = 3,706.50

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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.