Home / 3,821.22-5,276.34-2,981.16

Finding the Fourth Proportional to 3,821.22, 5,276.34 and 2,981.16

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Solution

The fourth proportional to 3,821.22, 5,276.34 and 2,981.16 is: 4,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.22 : 5,276.34 = 2,981.16 : x
  2. Step 2: Convert to fraction form
    3,821.22/5,276.34 = 2,981.16/x
  3. Step 3: Cross multiply
    3,821.22x = 5,276.34 × 2,981.16
  4. Step 4: Simplify right side
    3,821.22x = 15,729,613.75
  5. Step 5: Solve for x
    x = 15,729,613.75/3,821.22
  6. Step 6: Final answer
    x = 4,116.39

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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.