Home / 3,980.89-5,493.18-2,302.04

Finding the Fourth Proportional to 3,980.89, 5,493.18 and 2,302.04

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Solution

The fourth proportional to 3,980.89, 5,493.18 and 2,302.04 is: 3,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.89 : 5,493.18 = 2,302.04 : x
  2. Step 2: Convert to fraction form
    3,980.89/5,493.18 = 2,302.04/x
  3. Step 3: Cross multiply
    3,980.89x = 5,493.18 × 2,302.04
  4. Step 4: Simplify right side
    3,980.89x = 12,645,542.45
  5. Step 5: Solve for x
    x = 12,645,542.45/3,980.89
  6. Step 6: Final answer
    x = 3,176.56

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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.