Home / 3,241.90-4,471.44-2,121.04

Finding the Fourth Proportional to 3,241.90, 4,471.44 and 2,121.04

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Solution

The fourth proportional to 3,241.90, 4,471.44 and 2,121.04 is: 2,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.90 : 4,471.44 = 2,121.04 : x
  2. Step 2: Convert to fraction form
    3,241.90/4,471.44 = 2,121.04/x
  3. Step 3: Cross multiply
    3,241.90x = 4,471.44 × 2,121.04
  4. Step 4: Simplify right side
    3,241.90x = 9,484,103.10
  5. Step 5: Solve for x
    x = 9,484,103.10/3,241.90
  6. Step 6: Final answer
    x = 2,925.48

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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.