Home / 5,178.60-7,143.66-3,082.32

Finding the Fourth Proportional to 5,178.60, 7,143.66 and 3,082.32

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Solution

The fourth proportional to 5,178.60, 7,143.66 and 3,082.32 is: 4,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.60 : 7,143.66 = 3,082.32 : x
  2. Step 2: Convert to fraction form
    5,178.60/7,143.66 = 3,082.32/x
  3. Step 3: Cross multiply
    5,178.60x = 7,143.66 × 3,082.32
  4. Step 4: Simplify right side
    5,178.60x = 22,019,046.09
  5. Step 5: Solve for x
    x = 22,019,046.09/5,178.60
  6. Step 6: Final answer
    x = 4,251.93

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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.