Home / 2,208.15-3,311.04-1,165.68

Finding the Fourth Proportional to 2,208.15, 3,311.04 and 1,165.68

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Solution

The fourth proportional to 2,208.15, 3,311.04 and 1,165.68 is: 1,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.15 : 3,311.04 = 1,165.68 : x
  2. Step 2: Convert to fraction form
    2,208.15/3,311.04 = 1,165.68/x
  3. Step 3: Cross multiply
    2,208.15x = 3,311.04 × 1,165.68
  4. Step 4: Simplify right side
    2,208.15x = 3,859,613.11
  5. Step 5: Solve for x
    x = 3,859,613.11/2,208.15
  6. Step 6: Final answer
    x = 1,747.89

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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.