Home / 5,249.50-7,875.33-2,171.50

Finding the Fourth Proportional to 5,249.50, 7,875.33 and 2,171.50

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Solution

The fourth proportional to 5,249.50, 7,875.33 and 2,171.50 is: 3,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.50 : 7,875.33 = 2,171.50 : x
  2. Step 2: Convert to fraction form
    5,249.50/7,875.33 = 2,171.50/x
  3. Step 3: Cross multiply
    5,249.50x = 7,875.33 × 2,171.50
  4. Step 4: Simplify right side
    5,249.50x = 17,101,279.10
  5. Step 5: Solve for x
    x = 17,101,279.10/5,249.50
  6. Step 6: Final answer
    x = 3,257.70

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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.