Home / 2,221.92-3,329.28-1,353.60

Finding the Fourth Proportional to 2,221.92, 3,329.28 and 1,353.60

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Solution

The fourth proportional to 2,221.92, 3,329.28 and 1,353.60 is: 2,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.92 : 3,329.28 = 1,353.60 : x
  2. Step 2: Convert to fraction form
    2,221.92/3,329.28 = 1,353.60/x
  3. Step 3: Cross multiply
    2,221.92x = 3,329.28 × 1,353.60
  4. Step 4: Simplify right side
    2,221.92x = 4,506,513.41
  5. Step 5: Solve for x
    x = 4,506,513.41/2,221.92
  6. Step 6: Final answer
    x = 2,028.21

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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.