Home / 1,023.26-1,411.80-581.13

Finding the Fourth Proportional to 1,023.26, 1,411.80 and 581.13

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Solution

The fourth proportional to 1,023.26, 1,411.80 and 581.13 is: 801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.26 : 1,411.80 = 581.13 : x
  2. Step 2: Convert to fraction form
    1,023.26/1,411.80 = 581.13/x
  3. Step 3: Cross multiply
    1,023.26x = 1,411.80 × 581.13
  4. Step 4: Simplify right side
    1,023.26x = 820,439.33
  5. Step 5: Solve for x
    x = 820,439.33/1,023.26
  6. Step 6: Final answer
    x = 801.79

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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.