Home / 3,545.69-4,891.12-2,219.11

Finding the Fourth Proportional to 3,545.69, 4,891.12 and 2,219.11

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Solution

The fourth proportional to 3,545.69, 4,891.12 and 2,219.11 is: 3,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.69 : 4,891.12 = 2,219.11 : x
  2. Step 2: Convert to fraction form
    3,545.69/4,891.12 = 2,219.11/x
  3. Step 3: Cross multiply
    3,545.69x = 4,891.12 × 2,219.11
  4. Step 4: Simplify right side
    3,545.69x = 10,853,915.53
  5. Step 5: Solve for x
    x = 10,853,915.53/3,545.69
  6. Step 6: Final answer
    x = 3,061.16

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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.