Home / 5,178.22-7,145.97-3,082.42

Finding the Fourth Proportional to 5,178.22, 7,145.97 and 3,082.42

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Solution

The fourth proportional to 5,178.22, 7,145.97 and 3,082.42 is: 4,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.22 : 7,145.97 = 3,082.42 : x
  2. Step 2: Convert to fraction form
    5,178.22/7,145.97 = 3,082.42/x
  3. Step 3: Cross multiply
    5,178.22x = 7,145.97 × 3,082.42
  4. Step 4: Simplify right side
    5,178.22x = 22,026,880.85
  5. Step 5: Solve for x
    x = 22,026,880.85/5,178.22
  6. Step 6: Final answer
    x = 4,253.76

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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.