Home / 1,517.26-2,275.08-477.07

Finding the Fourth Proportional to 1,517.26, 2,275.08 and 477.07

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Solution

The fourth proportional to 1,517.26, 2,275.08 and 477.07 is: 715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.26 : 2,275.08 = 477.07 : x
  2. Step 2: Convert to fraction form
    1,517.26/2,275.08 = 477.07/x
  3. Step 3: Cross multiply
    1,517.26x = 2,275.08 × 477.07
  4. Step 4: Simplify right side
    1,517.26x = 1,085,372.42
  5. Step 5: Solve for x
    x = 1,085,372.42/1,517.26
  6. Step 6: Final answer
    x = 715.35

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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.