Home / 5,178.36-7,145.82-3,082.08

Finding the Fourth Proportional to 5,178.36, 7,145.82 and 3,082.08

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Solution

The fourth proportional to 5,178.36, 7,145.82 and 3,082.08 is: 4,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.36 : 7,145.82 = 3,082.08 : x
  2. Step 2: Convert to fraction form
    5,178.36/7,145.82 = 3,082.08/x
  3. Step 3: Cross multiply
    5,178.36x = 7,145.82 × 3,082.08
  4. Step 4: Simplify right side
    5,178.36x = 22,023,988.91
  5. Step 5: Solve for x
    x = 22,023,988.91/5,178.36
  6. Step 6: Final answer
    x = 4,253.08

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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.