Home / 6,872.10-10,307.62-2,191.92

Finding the Fourth Proportional to 6,872.10, 10,307.62 and 2,191.92

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Solution

The fourth proportional to 6,872.10, 10,307.62 and 2,191.92 is: 3,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.10 : 10,307.62 = 2,191.92 : x
  2. Step 2: Convert to fraction form
    6,872.10/10,307.62 = 2,191.92/x
  3. Step 3: Cross multiply
    6,872.10x = 10,307.62 × 2,191.92
  4. Step 4: Simplify right side
    6,872.10x = 22,593,426.89
  5. Step 5: Solve for x
    x = 22,593,426.89/6,872.10
  6. Step 6: Final answer
    x = 3,287.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.