Home / 1,377.28-2,066.35-452.85

Finding the Fourth Proportional to 1,377.28, 2,066.35 and 452.85

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Solution

The fourth proportional to 1,377.28, 2,066.35 and 452.85 is: 679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.28 : 2,066.35 = 452.85 : x
  2. Step 2: Convert to fraction form
    1,377.28/2,066.35 = 452.85/x
  3. Step 3: Cross multiply
    1,377.28x = 2,066.35 × 452.85
  4. Step 4: Simplify right side
    1,377.28x = 935,746.60
  5. Step 5: Solve for x
    x = 935,746.60/1,377.28
  6. Step 6: Final answer
    x = 679.42

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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.