Home / 5,439.31-7,507.46-3,082.75

Finding the Fourth Proportional to 5,439.31, 7,507.46 and 3,082.75

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Solution

The fourth proportional to 5,439.31, 7,507.46 and 3,082.75 is: 4,254.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.31 : 7,507.46 = 3,082.75 : x
  2. Step 2: Convert to fraction form
    5,439.31/7,507.46 = 3,082.75/x
  3. Step 3: Cross multiply
    5,439.31x = 7,507.46 × 3,082.75
  4. Step 4: Simplify right side
    5,439.31x = 23,143,606.90
  5. Step 5: Solve for x
    x = 23,143,606.90/5,439.31
  6. Step 6: Final answer
    x = 4,254.88

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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.