Home / 5,311.88-7,967.51-2,540.47

Finding the Fourth Proportional to 5,311.88, 7,967.51 and 2,540.47

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Solution

The fourth proportional to 5,311.88, 7,967.51 and 2,540.47 is: 3,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.88 : 7,967.51 = 2,540.47 : x
  2. Step 2: Convert to fraction form
    5,311.88/7,967.51 = 2,540.47/x
  3. Step 3: Cross multiply
    5,311.88x = 7,967.51 × 2,540.47
  4. Step 4: Simplify right side
    5,311.88x = 20,241,220.13
  5. Step 5: Solve for x
    x = 20,241,220.13/5,311.88
  6. Step 6: Final answer
    x = 3,810.56

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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.