Home / 7,116.91-10,679.97-3,221.35

Finding the Fourth Proportional to 7,116.91, 10,679.97 and 3,221.35

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Solution

The fourth proportional to 7,116.91, 10,679.97 and 3,221.35 is: 4,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.91 : 10,679.97 = 3,221.35 : x
  2. Step 2: Convert to fraction form
    7,116.91/10,679.97 = 3,221.35/x
  3. Step 3: Cross multiply
    7,116.91x = 10,679.97 × 3,221.35
  4. Step 4: Simplify right side
    7,116.91x = 34,403,867.96
  5. Step 5: Solve for x
    x = 34,403,867.96/7,116.91
  6. Step 6: Final answer
    x = 4,834.11

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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.