Home / 5,011.29-7,512.88-2,091.78

Finding the Fourth Proportional to 5,011.29, 7,512.88 and 2,091.78

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Solution

The fourth proportional to 5,011.29, 7,512.88 and 2,091.78 is: 3,135.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.29 : 7,512.88 = 2,091.78 : x
  2. Step 2: Convert to fraction form
    5,011.29/7,512.88 = 2,091.78/x
  3. Step 3: Cross multiply
    5,011.29x = 7,512.88 × 2,091.78
  4. Step 4: Simplify right side
    5,011.29x = 15,715,292.13
  5. Step 5: Solve for x
    x = 15,715,292.13/5,011.29
  6. Step 6: Final answer
    x = 3,135.98

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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.