Home / 5,140.92-7,711.44-2,675.28

Finding the Fourth Proportional to 5,140.92, 7,711.44 and 2,675.28

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Solution

The fourth proportional to 5,140.92, 7,711.44 and 2,675.28 is: 4,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.92 : 7,711.44 = 2,675.28 : x
  2. Step 2: Convert to fraction form
    5,140.92/7,711.44 = 2,675.28/x
  3. Step 3: Cross multiply
    5,140.92x = 7,711.44 × 2,675.28
  4. Step 4: Simplify right side
    5,140.92x = 20,630,261.20
  5. Step 5: Solve for x
    x = 20,630,261.20/5,140.92
  6. Step 6: Final answer
    x = 4,012.95

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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.