Home / 5,273.27-7,909.92-1,985.48

Finding the Fourth Proportional to 5,273.27, 7,909.92 and 1,985.48

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Solution

The fourth proportional to 5,273.27, 7,909.92 and 1,985.48 is: 2,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.27 : 7,909.92 = 1,985.48 : x
  2. Step 2: Convert to fraction form
    5,273.27/7,909.92 = 1,985.48/x
  3. Step 3: Cross multiply
    5,273.27x = 7,909.92 × 1,985.48
  4. Step 4: Simplify right side
    5,273.27x = 15,704,938.48
  5. Step 5: Solve for x
    x = 15,704,938.48/5,273.27
  6. Step 6: Final answer
    x = 2,978.22

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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.