Home / 6,864.62-9,474.75-3,882.20

Finding the Fourth Proportional to 6,864.62, 9,474.75 and 3,882.20

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Solution

The fourth proportional to 6,864.62, 9,474.75 and 3,882.20 is: 5,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.62 : 9,474.75 = 3,882.20 : x
  2. Step 2: Convert to fraction form
    6,864.62/9,474.75 = 3,882.20/x
  3. Step 3: Cross multiply
    6,864.62x = 9,474.75 × 3,882.20
  4. Step 4: Simplify right side
    6,864.62x = 36,782,855.04
  5. Step 5: Solve for x
    x = 36,782,855.04/6,864.62
  6. Step 6: Final answer
    x = 5,358.32

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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.