Home / 2,217.55-3,060.38-1,545.39

Finding the Fourth Proportional to 2,217.55, 3,060.38 and 1,545.39

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Solution

The fourth proportional to 2,217.55, 3,060.38 and 1,545.39 is: 2,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.55 : 3,060.38 = 1,545.39 : x
  2. Step 2: Convert to fraction form
    2,217.55/3,060.38 = 1,545.39/x
  3. Step 3: Cross multiply
    2,217.55x = 3,060.38 × 1,545.39
  4. Step 4: Simplify right side
    2,217.55x = 4,729,480.65
  5. Step 5: Solve for x
    x = 4,729,480.65/2,217.55
  6. Step 6: Final answer
    x = 2,132.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.