Home / 3,545.32-4,891.98-2,218.54

Finding the Fourth Proportional to 3,545.32, 4,891.98 and 2,218.54

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Solution

The fourth proportional to 3,545.32, 4,891.98 and 2,218.54 is: 3,061.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.32 : 4,891.98 = 2,218.54 : x
  2. Step 2: Convert to fraction form
    3,545.32/4,891.98 = 2,218.54/x
  3. Step 3: Cross multiply
    3,545.32x = 4,891.98 × 2,218.54
  4. Step 4: Simplify right side
    3,545.32x = 10,853,053.31
  5. Step 5: Solve for x
    x = 10,853,053.31/3,545.32
  6. Step 6: Final answer
    x = 3,061.23

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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.