Home / 3,158.32-4,738.84-1,310.76

Finding the Fourth Proportional to 3,158.32, 4,738.84 and 1,310.76

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Solution

The fourth proportional to 3,158.32, 4,738.84 and 1,310.76 is: 1,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.32 : 4,738.84 = 1,310.76 : x
  2. Step 2: Convert to fraction form
    3,158.32/4,738.84 = 1,310.76/x
  3. Step 3: Cross multiply
    3,158.32x = 4,738.84 × 1,310.76
  4. Step 4: Simplify right side
    3,158.32x = 6,211,481.92
  5. Step 5: Solve for x
    x = 6,211,481.92/3,158.32
  6. Step 6: Final answer
    x = 1,966.70

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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.