Home / 1,042.29-1,445.73-1,004.91

Finding the Fourth Proportional to 1,042.29, 1,445.73 and 1,004.91

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Solution

The fourth proportional to 1,042.29, 1,445.73 and 1,004.91 is: 1,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.29 : 1,445.73 = 1,004.91 : x
  2. Step 2: Convert to fraction form
    1,042.29/1,445.73 = 1,004.91/x
  3. Step 3: Cross multiply
    1,042.29x = 1,445.73 × 1,004.91
  4. Step 4: Simplify right side
    1,042.29x = 1,452,828.53
  5. Step 5: Solve for x
    x = 1,452,828.53/1,042.29
  6. Step 6: Final answer
    x = 1,393.88

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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.