Home / 6,872.16-10,307.66-2,191.98

Finding the Fourth Proportional to 6,872.16, 10,307.66 and 2,191.98

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Solution

The fourth proportional to 6,872.16, 10,307.66 and 2,191.98 is: 3,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.16 : 10,307.66 = 2,191.98 : x
  2. Step 2: Convert to fraction form
    6,872.16/10,307.66 = 2,191.98/x
  3. Step 3: Cross multiply
    6,872.16x = 10,307.66 × 2,191.98
  4. Step 4: Simplify right side
    6,872.16x = 22,594,173.61
  5. Step 5: Solve for x
    x = 22,594,173.61/6,872.16
  6. Step 6: Final answer
    x = 3,287.78

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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.