Home / 5,110.25-7,052.09-2,872.51

Finding the Fourth Proportional to 5,110.25, 7,052.09 and 2,872.51

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Solution

The fourth proportional to 5,110.25, 7,052.09 and 2,872.51 is: 3,964.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.25 : 7,052.09 = 2,872.51 : x
  2. Step 2: Convert to fraction form
    5,110.25/7,052.09 = 2,872.51/x
  3. Step 3: Cross multiply
    5,110.25x = 7,052.09 × 2,872.51
  4. Step 4: Simplify right side
    5,110.25x = 20,257,149.42
  5. Step 5: Solve for x
    x = 20,257,149.42/5,110.25
  6. Step 6: Final answer
    x = 3,964.02

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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.