Home / 1,042.27-1,448.15-1,029.17

Finding the Fourth Proportional to 1,042.27, 1,448.15 and 1,029.17

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Solution

The fourth proportional to 1,042.27, 1,448.15 and 1,029.17 is: 1,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.27 : 1,448.15 = 1,029.17 : x
  2. Step 2: Convert to fraction form
    1,042.27/1,448.15 = 1,029.17/x
  3. Step 3: Cross multiply
    1,042.27x = 1,448.15 × 1,029.17
  4. Step 4: Simplify right side
    1,042.27x = 1,490,391.01
  5. Step 5: Solve for x
    x = 1,490,391.01/1,042.27
  6. Step 6: Final answer
    x = 1,429.95

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.