Home / 5,132.12-7,082.40-3,007.14

Finding the Fourth Proportional to 5,132.12, 7,082.40 and 3,007.14

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Solution

The fourth proportional to 5,132.12, 7,082.40 and 3,007.14 is: 4,149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.12 : 7,082.40 = 3,007.14 : x
  2. Step 2: Convert to fraction form
    5,132.12/7,082.40 = 3,007.14/x
  3. Step 3: Cross multiply
    5,132.12x = 7,082.40 × 3,007.14
  4. Step 4: Simplify right side
    5,132.12x = 21,297,732.92
  5. Step 5: Solve for x
    x = 21,297,732.92/5,132.12
  6. Step 6: Final answer
    x = 4,149.89

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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.