Home / 5,110.95-7,052.25-2,872.53

Finding the Fourth Proportional to 5,110.95, 7,052.25 and 2,872.53

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Solution

The fourth proportional to 5,110.95, 7,052.25 and 2,872.53 is: 3,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.95 : 7,052.25 = 2,872.53 : x
  2. Step 2: Convert to fraction form
    5,110.95/7,052.25 = 2,872.53/x
  3. Step 3: Cross multiply
    5,110.95x = 7,052.25 × 2,872.53
  4. Step 4: Simplify right side
    5,110.95x = 20,257,799.69
  5. Step 5: Solve for x
    x = 20,257,799.69/5,110.95
  6. Step 6: Final answer
    x = 3,963.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.