Home / 3,687.42-5,531.11-3,036.78

Finding the Fourth Proportional to 3,687.42, 5,531.11 and 3,036.78

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Solution

The fourth proportional to 3,687.42, 5,531.11 and 3,036.78 is: 4,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.42 : 5,531.11 = 3,036.78 : x
  2. Step 2: Convert to fraction form
    3,687.42/5,531.11 = 3,036.78/x
  3. Step 3: Cross multiply
    3,687.42x = 5,531.11 × 3,036.78
  4. Step 4: Simplify right side
    3,687.42x = 16,796,764.23
  5. Step 5: Solve for x
    x = 16,796,764.23/3,687.42
  6. Step 6: Final answer
    x = 4,555.15

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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.