Home / 3,166.30-4,753.05-1,318.78

Finding the Fourth Proportional to 3,166.30, 4,753.05 and 1,318.78

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Solution

The fourth proportional to 3,166.30, 4,753.05 and 1,318.78 is: 1,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.30 : 4,753.05 = 1,318.78 : x
  2. Step 2: Convert to fraction form
    3,166.30/4,753.05 = 1,318.78/x
  3. Step 3: Cross multiply
    3,166.30x = 4,753.05 × 1,318.78
  4. Step 4: Simplify right side
    3,166.30x = 6,268,227.28
  5. Step 5: Solve for x
    x = 6,268,227.28/3,166.30
  6. Step 6: Final answer
    x = 1,979.67

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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.