Home / 3,711.62-5,570.13-2,989.91

Finding the Fourth Proportional to 3,711.62, 5,570.13 and 2,989.91

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Solution

The fourth proportional to 3,711.62, 5,570.13 and 2,989.91 is: 4,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.62 : 5,570.13 = 2,989.91 : x
  2. Step 2: Convert to fraction form
    3,711.62/5,570.13 = 2,989.91/x
  3. Step 3: Cross multiply
    3,711.62x = 5,570.13 × 2,989.91
  4. Step 4: Simplify right side
    3,711.62x = 16,654,187.39
  5. Step 5: Solve for x
    x = 16,654,187.39/3,711.62
  6. Step 6: Final answer
    x = 4,487.04

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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.