Home / 2,392.20-3,588.42-748.74

Finding the Fourth Proportional to 2,392.20, 3,588.42 and 748.74

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Solution

The fourth proportional to 2,392.20, 3,588.42 and 748.74 is: 1,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.20 : 3,588.42 = 748.74 : x
  2. Step 2: Convert to fraction form
    2,392.20/3,588.42 = 748.74/x
  3. Step 3: Cross multiply
    2,392.20x = 3,588.42 × 748.74
  4. Step 4: Simplify right side
    2,392.20x = 2,686,793.59
  5. Step 5: Solve for x
    x = 2,686,793.59/2,392.20
  6. Step 6: Final answer
    x = 1,123.15

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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.