Home / 5,436.18-8,154.20-2,149.25

Finding the Fourth Proportional to 5,436.18, 8,154.20 and 2,149.25

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Solution

The fourth proportional to 5,436.18, 8,154.20 and 2,149.25 is: 3,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.18 : 8,154.20 = 2,149.25 : x
  2. Step 2: Convert to fraction form
    5,436.18/8,154.20 = 2,149.25/x
  3. Step 3: Cross multiply
    5,436.18x = 8,154.20 × 2,149.25
  4. Step 4: Simplify right side
    5,436.18x = 17,525,414.35
  5. Step 5: Solve for x
    x = 17,525,414.35/5,436.18
  6. Step 6: Final answer
    x = 3,223.85

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1.5x scale

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.