Home / 1,545.20-2,317.25-667.46

Finding the Fourth Proportional to 1,545.20, 2,317.25 and 667.46

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Solution

The fourth proportional to 1,545.20, 2,317.25 and 667.46 is: 1,000.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.20 : 2,317.25 = 667.46 : x
  2. Step 2: Convert to fraction form
    1,545.20/2,317.25 = 667.46/x
  3. Step 3: Cross multiply
    1,545.20x = 2,317.25 × 667.46
  4. Step 4: Simplify right side
    1,545.20x = 1,546,656.76
  5. Step 5: Solve for x
    x = 1,546,656.76/1,545.20
  6. Step 6: Final answer
    x = 1,000.95

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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.