Home / 5,110.42-7,052.51-2,872.16

Finding the Fourth Proportional to 5,110.42, 7,052.51 and 2,872.16

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Solution

The fourth proportional to 5,110.42, 7,052.51 and 2,872.16 is: 3,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.42 : 7,052.51 = 2,872.16 : x
  2. Step 2: Convert to fraction form
    5,110.42/7,052.51 = 2,872.16/x
  3. Step 3: Cross multiply
    5,110.42x = 7,052.51 × 2,872.16
  4. Step 4: Simplify right side
    5,110.42x = 20,255,937.12
  5. Step 5: Solve for x
    x = 20,255,937.12/5,110.42
  6. Step 6: Final answer
    x = 3,963.65

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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.