Home / 1,517.28-2,276.46-695.13

Finding the Fourth Proportional to 1,517.28, 2,276.46 and 695.13

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Solution

The fourth proportional to 1,517.28, 2,276.46 and 695.13 is: 1,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.28 : 2,276.46 = 695.13 : x
  2. Step 2: Convert to fraction form
    1,517.28/2,276.46 = 695.13/x
  3. Step 3: Cross multiply
    1,517.28x = 2,276.46 × 695.13
  4. Step 4: Simplify right side
    1,517.28x = 1,582,435.64
  5. Step 5: Solve for x
    x = 1,582,435.64/1,517.28
  6. Step 6: Final answer
    x = 1,042.94

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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.