Home / 3,381.35-5,070.33-2,147.85

Finding the Fourth Proportional to 3,381.35, 5,070.33 and 2,147.85

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Solution

The fourth proportional to 3,381.35, 5,070.33 and 2,147.85 is: 3,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.35 : 5,070.33 = 2,147.85 : x
  2. Step 2: Convert to fraction form
    3,381.35/5,070.33 = 2,147.85/x
  3. Step 3: Cross multiply
    3,381.35x = 5,070.33 × 2,147.85
  4. Step 4: Simplify right side
    3,381.35x = 10,890,308.29
  5. Step 5: Solve for x
    x = 10,890,308.29/3,381.35
  6. Step 6: Final answer
    x = 3,220.70

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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.