Home / 5,116.32-7,678.13-2,195.46

Finding the Fourth Proportional to 5,116.32, 7,678.13 and 2,195.46

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Solution

The fourth proportional to 5,116.32, 7,678.13 and 2,195.46 is: 3,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.32 : 7,678.13 = 2,195.46 : x
  2. Step 2: Convert to fraction form
    5,116.32/7,678.13 = 2,195.46/x
  3. Step 3: Cross multiply
    5,116.32x = 7,678.13 × 2,195.46
  4. Step 4: Simplify right side
    5,116.32x = 16,857,016.31
  5. Step 5: Solve for x
    x = 16,857,016.31/5,116.32
  6. Step 6: Final answer
    x = 3,294.75

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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.