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Finding the Fourth Proportional to 1,488.43, 2,232.63 and 377.86

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Solution

The fourth proportional to 1,488.43, 2,232.63 and 377.86 is: 566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.43 : 2,232.63 = 377.86 : x
  2. Step 2: Convert to fraction form
    1,488.43/2,232.63 = 377.86/x
  3. Step 3: Cross multiply
    1,488.43x = 2,232.63 × 377.86
  4. Step 4: Simplify right side
    1,488.43x = 843,610.41
  5. Step 5: Solve for x
    x = 843,610.41/1,488.43
  6. Step 6: Final answer
    x = 566.78

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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.