Home / 5,110.45-7,052.60-2,872.28

Finding the Fourth Proportional to 5,110.45, 7,052.60 and 2,872.28

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Solution

The fourth proportional to 5,110.45, 7,052.60 and 2,872.28 is: 3,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.45 : 7,052.60 = 2,872.28 : x
  2. Step 2: Convert to fraction form
    5,110.45/7,052.60 = 2,872.28/x
  3. Step 3: Cross multiply
    5,110.45x = 7,052.60 × 2,872.28
  4. Step 4: Simplify right side
    5,110.45x = 20,257,041.93
  5. Step 5: Solve for x
    x = 20,257,041.93/5,110.45
  6. Step 6: Final answer
    x = 3,963.85

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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.