Home / 3,808.27-5,713.39-1,211.20

Finding the Fourth Proportional to 3,808.27, 5,713.39 and 1,211.20

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Solution

The fourth proportional to 3,808.27, 5,713.39 and 1,211.20 is: 1,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.27 : 5,713.39 = 1,211.20 : x
  2. Step 2: Convert to fraction form
    3,808.27/5,713.39 = 1,211.20/x
  3. Step 3: Cross multiply
    3,808.27x = 5,713.39 × 1,211.20
  4. Step 4: Simplify right side
    3,808.27x = 6,920,070.52
  5. Step 5: Solve for x
    x = 6,920,070.52/3,808.27
  6. Step 6: Final answer
    x = 1,817.12

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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.