Home / 7,118.27-10,677.40-2,187.97

Finding the Fourth Proportional to 7,118.27, 10,677.40 and 2,187.97

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Solution

The fourth proportional to 7,118.27, 10,677.40 and 2,187.97 is: 3,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.27 : 10,677.40 = 2,187.97 : x
  2. Step 2: Convert to fraction form
    7,118.27/10,677.40 = 2,187.97/x
  3. Step 3: Cross multiply
    7,118.27x = 10,677.40 × 2,187.97
  4. Step 4: Simplify right side
    7,118.27x = 23,361,830.88
  5. Step 5: Solve for x
    x = 23,361,830.88/7,118.27
  6. Step 6: Final answer
    x = 3,281.95

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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.