Home / 5,622.24-7,758.16-3,138.08

Finding the Fourth Proportional to 5,622.24, 7,758.16 and 3,138.08

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Solution

The fourth proportional to 5,622.24, 7,758.16 and 3,138.08 is: 4,330.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.24 : 7,758.16 = 3,138.08 : x
  2. Step 2: Convert to fraction form
    5,622.24/7,758.16 = 3,138.08/x
  3. Step 3: Cross multiply
    5,622.24x = 7,758.16 × 3,138.08
  4. Step 4: Simplify right side
    5,622.24x = 24,345,726.73
  5. Step 5: Solve for x
    x = 24,345,726.73/5,622.24
  6. Step 6: Final answer
    x = 4,330.25

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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.