Home / 2,195.84-3,278.72-1,871.04

Finding the Fourth Proportional to 2,195.84, 3,278.72 and 1,871.04

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Solution

The fourth proportional to 2,195.84, 3,278.72 and 1,871.04 is: 2,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.84 : 3,278.72 = 1,871.04 : x
  2. Step 2: Convert to fraction form
    2,195.84/3,278.72 = 1,871.04/x
  3. Step 3: Cross multiply
    2,195.84x = 3,278.72 × 1,871.04
  4. Step 4: Simplify right side
    2,195.84x = 6,134,616.27
  5. Step 5: Solve for x
    x = 6,134,616.27/2,195.84
  6. Step 6: Final answer
    x = 2,793.74

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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.