Home / 5,116.82-7,678.88-2,195.96

Finding the Fourth Proportional to 5,116.82, 7,678.88 and 2,195.96

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Solution

The fourth proportional to 5,116.82, 7,678.88 and 2,195.96 is: 3,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.82 : 7,678.88 = 2,195.96 : x
  2. Step 2: Convert to fraction form
    5,116.82/7,678.88 = 2,195.96/x
  3. Step 3: Cross multiply
    5,116.82x = 7,678.88 × 2,195.96
  4. Step 4: Simplify right side
    5,116.82x = 16,862,502.35
  5. Step 5: Solve for x
    x = 16,862,502.35/5,116.82
  6. Step 6: Final answer
    x = 3,295.50

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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.