Home / 5,319.40-7,976.18-2,546.78

Finding the Fourth Proportional to 5,319.40, 7,976.18 and 2,546.78

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Solution

The fourth proportional to 5,319.40, 7,976.18 and 2,546.78 is: 3,818.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.40 : 7,976.18 = 2,546.78 : x
  2. Step 2: Convert to fraction form
    5,319.40/7,976.18 = 2,546.78/x
  3. Step 3: Cross multiply
    5,319.40x = 7,976.18 × 2,546.78
  4. Step 4: Simplify right side
    5,319.40x = 20,313,575.70
  5. Step 5: Solve for x
    x = 20,313,575.70/5,319.40
  6. Step 6: Final answer
    x = 3,818.77

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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.