Home / 5,040.87-6,951.75-3,151.85

Finding the Fourth Proportional to 5,040.87, 6,951.75 and 3,151.85

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Solution

The fourth proportional to 5,040.87, 6,951.75 and 3,151.85 is: 4,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.87 : 6,951.75 = 3,151.85 : x
  2. Step 2: Convert to fraction form
    5,040.87/6,951.75 = 3,151.85/x
  3. Step 3: Cross multiply
    5,040.87x = 6,951.75 × 3,151.85
  4. Step 4: Simplify right side
    5,040.87x = 21,910,873.24
  5. Step 5: Solve for x
    x = 21,910,873.24/5,040.87
  6. Step 6: Final answer
    x = 4,346.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.