Home / 3,168.58-4,753.48-1,318.70

Finding the Fourth Proportional to 3,168.58, 4,753.48 and 1,318.70

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Solution

The fourth proportional to 3,168.58, 4,753.48 and 1,318.70 is: 1,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.58 : 4,753.48 = 1,318.70 : x
  2. Step 2: Convert to fraction form
    3,168.58/4,753.48 = 1,318.70/x
  3. Step 3: Cross multiply
    3,168.58x = 4,753.48 × 1,318.70
  4. Step 4: Simplify right side
    3,168.58x = 6,268,414.08
  5. Step 5: Solve for x
    x = 6,268,414.08/3,168.58
  6. Step 6: Final answer
    x = 1,978.30

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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.