Home / 1,517.26-2,275.16-695.30

Finding the Fourth Proportional to 1,517.26, 2,275.16 and 695.30

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Solution

The fourth proportional to 1,517.26, 2,275.16 and 695.30 is: 1,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.26 : 2,275.16 = 695.30 : x
  2. Step 2: Convert to fraction form
    1,517.26/2,275.16 = 695.30/x
  3. Step 3: Cross multiply
    1,517.26x = 2,275.16 × 695.30
  4. Step 4: Simplify right side
    1,517.26x = 1,581,918.75
  5. Step 5: Solve for x
    x = 1,581,918.75/1,517.26
  6. Step 6: Final answer
    x = 1,042.62

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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.