Home / 3,781.20-5,217.96-2,210.16

Finding the Fourth Proportional to 3,781.20, 5,217.96 and 2,210.16

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Solution

The fourth proportional to 3,781.20, 5,217.96 and 2,210.16 is: 3,049.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.20 : 5,217.96 = 2,210.16 : x
  2. Step 2: Convert to fraction form
    3,781.20/5,217.96 = 2,210.16/x
  3. Step 3: Cross multiply
    3,781.20x = 5,217.96 × 2,210.16
  4. Step 4: Simplify right side
    3,781.20x = 11,532,526.47
  5. Step 5: Solve for x
    x = 11,532,526.47/3,781.20
  6. Step 6: Final answer
    x = 3,049.96

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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.