Home / 5,138.32-7,091.24-3,877.16

Finding the Fourth Proportional to 5,138.32, 7,091.24 and 3,877.16

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Solution

The fourth proportional to 5,138.32, 7,091.24 and 3,877.16 is: 5,350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.32 : 7,091.24 = 3,877.16 : x
  2. Step 2: Convert to fraction form
    5,138.32/7,091.24 = 3,877.16/x
  3. Step 3: Cross multiply
    5,138.32x = 7,091.24 × 3,877.16
  4. Step 4: Simplify right side
    5,138.32x = 27,493,872.08
  5. Step 5: Solve for x
    x = 27,493,872.08/5,138.32
  6. Step 6: Final answer
    x = 5,350.75

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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.