Home / 5,101.92-7,647.84-2,177.28

Finding the Fourth Proportional to 5,101.92, 7,647.84 and 2,177.28

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Solution

The fourth proportional to 5,101.92, 7,647.84 and 2,177.28 is: 3,263.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.92 : 7,647.84 = 2,177.28 : x
  2. Step 2: Convert to fraction form
    5,101.92/7,647.84 = 2,177.28/x
  3. Step 3: Cross multiply
    5,101.92x = 7,647.84 × 2,177.28
  4. Step 4: Simplify right side
    5,101.92x = 16,651,489.08
  5. Step 5: Solve for x
    x = 16,651,489.08/5,101.92
  6. Step 6: Final answer
    x = 3,263.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.