Home / 3,702.22-5,108.90-2,209.78

Finding the Fourth Proportional to 3,702.22, 5,108.90 and 2,209.78

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Solution

The fourth proportional to 3,702.22, 5,108.90 and 2,209.78 is: 3,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.22 : 5,108.90 = 2,209.78 : x
  2. Step 2: Convert to fraction form
    3,702.22/5,108.90 = 2,209.78/x
  3. Step 3: Cross multiply
    3,702.22x = 5,108.90 × 2,209.78
  4. Step 4: Simplify right side
    3,702.22x = 11,289,545.04
  5. Step 5: Solve for x
    x = 11,289,545.04/3,702.22
  6. Step 6: Final answer
    x = 3,049.40

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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.