Home / 1,493.28-2,060.66-863.78

Finding the Fourth Proportional to 1,493.28, 2,060.66 and 863.78

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Solution

The fourth proportional to 1,493.28, 2,060.66 and 863.78 is: 1,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.28 : 2,060.66 = 863.78 : x
  2. Step 2: Convert to fraction form
    1,493.28/2,060.66 = 863.78/x
  3. Step 3: Cross multiply
    1,493.28x = 2,060.66 × 863.78
  4. Step 4: Simplify right side
    1,493.28x = 1,779,948.75
  5. Step 5: Solve for x
    x = 1,779,948.75/1,493.28
  6. Step 6: Final answer
    x = 1,191.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.