Home / 2,176.38-3,264.84-789.53

Finding the Fourth Proportional to 2,176.38, 3,264.84 and 789.53

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Solution

The fourth proportional to 2,176.38, 3,264.84 and 789.53 is: 1,184.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.38 : 3,264.84 = 789.53 : x
  2. Step 2: Convert to fraction form
    2,176.38/3,264.84 = 789.53/x
  3. Step 3: Cross multiply
    2,176.38x = 3,264.84 × 789.53
  4. Step 4: Simplify right side
    2,176.38x = 2,577,672.80
  5. Step 5: Solve for x
    x = 2,577,672.80/2,176.38
  6. Step 6: Final answer
    x = 1,184.39

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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.