Home / 3,168.70-4,753.52-1,318.76

Finding the Fourth Proportional to 3,168.70, 4,753.52 and 1,318.76

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Solution

The fourth proportional to 3,168.70, 4,753.52 and 1,318.76 is: 1,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.70 : 4,753.52 = 1,318.76 : x
  2. Step 2: Convert to fraction form
    3,168.70/4,753.52 = 1,318.76/x
  3. Step 3: Cross multiply
    3,168.70x = 4,753.52 × 1,318.76
  4. Step 4: Simplify right side
    3,168.70x = 6,268,744.44
  5. Step 5: Solve for x
    x = 6,268,744.44/3,168.70
  6. Step 6: Final answer
    x = 1,978.33

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1.5x scale

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.