Home / 1,060.28-1,589.70-512.72

Finding the Fourth Proportional to 1,060.28, 1,589.70 and 512.72

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Solution

The fourth proportional to 1,060.28, 1,589.70 and 512.72 is: 768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.28 : 1,589.70 = 512.72 : x
  2. Step 2: Convert to fraction form
    1,060.28/1,589.70 = 512.72/x
  3. Step 3: Cross multiply
    1,060.28x = 1,589.70 × 512.72
  4. Step 4: Simplify right side
    1,060.28x = 815,070.98
  5. Step 5: Solve for x
    x = 815,070.98/1,060.28
  6. Step 6: Final answer
    x = 768.73

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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.