Home / 3,082.72-4,254.17-1,685.47

Finding the Fourth Proportional to 3,082.72, 4,254.17 and 1,685.47

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Solution

The fourth proportional to 3,082.72, 4,254.17 and 1,685.47 is: 2,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.72 : 4,254.17 = 1,685.47 : x
  2. Step 2: Convert to fraction form
    3,082.72/4,254.17 = 1,685.47/x
  3. Step 3: Cross multiply
    3,082.72x = 4,254.17 × 1,685.47
  4. Step 4: Simplify right side
    3,082.72x = 7,170,275.91
  5. Step 5: Solve for x
    x = 7,170,275.91/3,082.72
  6. Step 6: Final answer
    x = 2,325.96

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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.