Home / 2,318.40-3,471.84-2,197.44

Finding the Fourth Proportional to 2,318.40, 3,471.84 and 2,197.44

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Solution

The fourth proportional to 2,318.40, 3,471.84 and 2,197.44 is: 3,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.40 : 3,471.84 = 2,197.44 : x
  2. Step 2: Convert to fraction form
    2,318.40/3,471.84 = 2,197.44/x
  3. Step 3: Cross multiply
    2,318.40x = 3,471.84 × 2,197.44
  4. Step 4: Simplify right side
    2,318.40x = 7,629,160.09
  5. Step 5: Solve for x
    x = 7,629,160.09/2,318.40
  6. Step 6: Final answer
    x = 3,290.70

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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.