Home / 2,178.44-3,241.56-2,171.18

Finding the Fourth Proportional to 2,178.44, 3,241.56 and 2,171.18

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Solution

The fourth proportional to 2,178.44, 3,241.56 and 2,171.18 is: 3,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.44 : 3,241.56 = 2,171.18 : x
  2. Step 2: Convert to fraction form
    2,178.44/3,241.56 = 2,171.18/x
  3. Step 3: Cross multiply
    2,178.44x = 3,241.56 × 2,171.18
  4. Step 4: Simplify right side
    2,178.44x = 7,037,999.38
  5. Step 5: Solve for x
    x = 7,037,999.38/2,178.44
  6. Step 6: Final answer
    x = 3,230.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.