Home / 2,220.32-3,324.78-2,154.62

Finding the Fourth Proportional to 2,220.32, 3,324.78 and 2,154.62

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Solution

The fourth proportional to 2,220.32, 3,324.78 and 2,154.62 is: 3,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.32 : 3,324.78 = 2,154.62 : x
  2. Step 2: Convert to fraction form
    2,220.32/3,324.78 = 2,154.62/x
  3. Step 3: Cross multiply
    2,220.32x = 3,324.78 × 2,154.62
  4. Step 4: Simplify right side
    2,220.32x = 7,163,645.80
  5. Step 5: Solve for x
    x = 7,163,645.80/2,220.32
  6. Step 6: Final answer
    x = 3,226.41

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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.