Home / 6,871.32-10,306.80-1,677.15

Finding the Fourth Proportional to 6,871.32, 10,306.80 and 1,677.15

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Solution

The fourth proportional to 6,871.32, 10,306.80 and 1,677.15 is: 2,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.32 : 10,306.80 = 1,677.15 : x
  2. Step 2: Convert to fraction form
    6,871.32/10,306.80 = 1,677.15/x
  3. Step 3: Cross multiply
    6,871.32x = 10,306.80 × 1,677.15
  4. Step 4: Simplify right side
    6,871.32x = 17,286,049.62
  5. Step 5: Solve for x
    x = 17,286,049.62/6,871.32
  6. Step 6: Final answer
    x = 2,515.68

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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.