Home / 4,001.12-5,521.68-2,208.72

Finding the Fourth Proportional to 4,001.12, 5,521.68 and 2,208.72

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Solution

The fourth proportional to 4,001.12, 5,521.68 and 2,208.72 is: 3,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.12 : 5,521.68 = 2,208.72 : x
  2. Step 2: Convert to fraction form
    4,001.12/5,521.68 = 2,208.72/x
  3. Step 3: Cross multiply
    4,001.12x = 5,521.68 × 2,208.72
  4. Step 4: Simplify right side
    4,001.12x = 12,195,845.05
  5. Step 5: Solve for x
    x = 12,195,845.05/4,001.12
  6. Step 6: Final answer
    x = 3,048.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.