Home / 5,439.60-7,507.08-3,082.32

Finding the Fourth Proportional to 5,439.60, 7,507.08 and 3,082.32

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Solution

The fourth proportional to 5,439.60, 7,507.08 and 3,082.32 is: 4,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.60 : 7,507.08 = 3,082.32 : x
  2. Step 2: Convert to fraction form
    5,439.60/7,507.08 = 3,082.32/x
  3. Step 3: Cross multiply
    5,439.60x = 7,507.08 × 3,082.32
  4. Step 4: Simplify right side
    5,439.60x = 23,139,222.83
  5. Step 5: Solve for x
    x = 23,139,222.83/5,439.60
  6. Step 6: Final answer
    x = 4,253.85

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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.