Home / 1,680.74-2,521.20-1,545.44

Finding the Fourth Proportional to 1,680.74, 2,521.20 and 1,545.44

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Solution

The fourth proportional to 1,680.74, 2,521.20 and 1,545.44 is: 2,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.74 : 2,521.20 = 1,545.44 : x
  2. Step 2: Convert to fraction form
    1,680.74/2,521.20 = 1,545.44/x
  3. Step 3: Cross multiply
    1,680.74x = 2,521.20 × 1,545.44
  4. Step 4: Simplify right side
    1,680.74x = 3,896,363.33
  5. Step 5: Solve for x
    x = 3,896,363.33/1,680.74
  6. Step 6: Final answer
    x = 2,318.24

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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.