Home / 3,187.76-4,397.88-2,126.04

Finding the Fourth Proportional to 3,187.76, 4,397.88 and 2,126.04

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Solution

The fourth proportional to 3,187.76, 4,397.88 and 2,126.04 is: 2,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.76 : 4,397.88 = 2,126.04 : x
  2. Step 2: Convert to fraction form
    3,187.76/4,397.88 = 2,126.04/x
  3. Step 3: Cross multiply
    3,187.76x = 4,397.88 × 2,126.04
  4. Step 4: Simplify right side
    3,187.76x = 9,350,068.80
  5. Step 5: Solve for x
    x = 9,350,068.80/3,187.76
  6. Step 6: Final answer
    x = 2,933.12

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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.