Home / 1,432.22-2,148.17-699.58

Finding the Fourth Proportional to 1,432.22, 2,148.17 and 699.58

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Solution

The fourth proportional to 1,432.22, 2,148.17 and 699.58 is: 1,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.22 : 2,148.17 = 699.58 : x
  2. Step 2: Convert to fraction form
    1,432.22/2,148.17 = 699.58/x
  3. Step 3: Cross multiply
    1,432.22x = 2,148.17 × 699.58
  4. Step 4: Simplify right side
    1,432.22x = 1,502,807.78
  5. Step 5: Solve for x
    x = 1,502,807.78/1,432.22
  6. Step 6: Final answer
    x = 1,049.29

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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.