Home / 1,411.32-2,115.12-1,265.52

Finding the Fourth Proportional to 1,411.32, 2,115.12 and 1,265.52

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Solution

The fourth proportional to 1,411.32, 2,115.12 and 1,265.52 is: 1,896.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.32 : 2,115.12 = 1,265.52 : x
  2. Step 2: Convert to fraction form
    1,411.32/2,115.12 = 1,265.52/x
  3. Step 3: Cross multiply
    1,411.32x = 2,115.12 × 1,265.52
  4. Step 4: Simplify right side
    1,411.32x = 2,676,726.66
  5. Step 5: Solve for x
    x = 2,676,726.66/1,411.32
  6. Step 6: Final answer
    x = 1,896.61

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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.