Home / 1,512.46-2,086.17-1,315.66

Finding the Fourth Proportional to 1,512.46, 2,086.17 and 1,315.66

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Solution

The fourth proportional to 1,512.46, 2,086.17 and 1,315.66 is: 1,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.46 : 2,086.17 = 1,315.66 : x
  2. Step 2: Convert to fraction form
    1,512.46/2,086.17 = 1,315.66/x
  3. Step 3: Cross multiply
    1,512.46x = 2,086.17 × 1,315.66
  4. Step 4: Simplify right side
    1,512.46x = 2,744,690.42
  5. Step 5: Solve for x
    x = 2,744,690.42/1,512.46
  6. Step 6: Final answer
    x = 1,814.72

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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.