Home / 1,517.90-2,278.67-1,029.47

Finding the Fourth Proportional to 1,517.90, 2,278.67 and 1,029.47

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Solution

The fourth proportional to 1,517.90, 2,278.67 and 1,029.47 is: 1,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.90 : 2,278.67 = 1,029.47 : x
  2. Step 2: Convert to fraction form
    1,517.90/2,278.67 = 1,029.47/x
  3. Step 3: Cross multiply
    1,517.90x = 2,278.67 × 1,029.47
  4. Step 4: Simplify right side
    1,517.90x = 2,345,822.40
  5. Step 5: Solve for x
    x = 2,345,822.40/1,517.90
  6. Step 6: Final answer
    x = 1,545.44

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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.