Home / 5,114.27-7,669.78-2,191.79

Finding the Fourth Proportional to 5,114.27, 7,669.78 and 2,191.79

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Solution

The fourth proportional to 5,114.27, 7,669.78 and 2,191.79 is: 3,286.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.27 : 7,669.78 = 2,191.79 : x
  2. Step 2: Convert to fraction form
    5,114.27/7,669.78 = 2,191.79/x
  3. Step 3: Cross multiply
    5,114.27x = 7,669.78 × 2,191.79
  4. Step 4: Simplify right side
    5,114.27x = 16,810,547.11
  5. Step 5: Solve for x
    x = 16,810,547.11/5,114.27
  6. Step 6: Final answer
    x = 3,286.99

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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.