Home / 5,311.20-7,954.65-2,539.82

Finding the Fourth Proportional to 5,311.20, 7,954.65 and 2,539.82

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Solution

The fourth proportional to 5,311.20, 7,954.65 and 2,539.82 is: 3,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.20 : 7,954.65 = 2,539.82 : x
  2. Step 2: Convert to fraction form
    5,311.20/7,954.65 = 2,539.82/x
  3. Step 3: Cross multiply
    5,311.20x = 7,954.65 × 2,539.82
  4. Step 4: Simplify right side
    5,311.20x = 20,203,326.69
  5. Step 5: Solve for x
    x = 20,203,326.69/5,311.20
  6. Step 6: Final answer
    x = 3,803.91

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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.