Home / 3,433.20-5,149.78-836.13

Finding the Fourth Proportional to 3,433.20, 5,149.78 and 836.13

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Solution

The fourth proportional to 3,433.20, 5,149.78 and 836.13 is: 1,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.20 : 5,149.78 = 836.13 : x
  2. Step 2: Convert to fraction form
    3,433.20/5,149.78 = 836.13/x
  3. Step 3: Cross multiply
    3,433.20x = 5,149.78 × 836.13
  4. Step 4: Simplify right side
    3,433.20x = 4,305,885.55
  5. Step 5: Solve for x
    x = 4,305,885.55/3,433.20
  6. Step 6: Final answer
    x = 1,254.19

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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.