Home / 7,251.90-10,877.86-1,986.52

Finding the Fourth Proportional to 7,251.90, 10,877.86 and 1,986.52

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Solution

The fourth proportional to 7,251.90, 10,877.86 and 1,986.52 is: 2,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.90 : 10,877.86 = 1,986.52 : x
  2. Step 2: Convert to fraction form
    7,251.90/10,877.86 = 1,986.52/x
  3. Step 3: Cross multiply
    7,251.90x = 10,877.86 × 1,986.52
  4. Step 4: Simplify right side
    7,251.90x = 21,609,086.45
  5. Step 5: Solve for x
    x = 21,609,086.45/7,251.90
  6. Step 6: Final answer
    x = 2,979.78

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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.