Home / 6,120.17-8,446.38-3,729.56

Finding the Fourth Proportional to 6,120.17, 8,446.38 and 3,729.56

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Solution

The fourth proportional to 6,120.17, 8,446.38 and 3,729.56 is: 5,147.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.17 : 8,446.38 = 3,729.56 : x
  2. Step 2: Convert to fraction form
    6,120.17/8,446.38 = 3,729.56/x
  3. Step 3: Cross multiply
    6,120.17x = 8,446.38 × 3,729.56
  4. Step 4: Simplify right side
    6,120.17x = 31,501,272.29
  5. Step 5: Solve for x
    x = 31,501,272.29/6,120.17
  6. Step 6: Final answer
    x = 5,147.12

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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.