Home / 2,240.60-3,105.12-2,209.28

Finding the Fourth Proportional to 2,240.60, 3,105.12 and 2,209.28

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Solution

The fourth proportional to 2,240.60, 3,105.12 and 2,209.28 is: 3,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.60 : 3,105.12 = 2,209.28 : x
  2. Step 2: Convert to fraction form
    2,240.60/3,105.12 = 2,209.28/x
  3. Step 3: Cross multiply
    2,240.60x = 3,105.12 × 2,209.28
  4. Step 4: Simplify right side
    2,240.60x = 6,860,079.51
  5. Step 5: Solve for x
    x = 6,860,079.51/2,240.60
  6. Step 6: Final answer
    x = 3,061.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.