Home / 3,488.60-5,256.89-2,885.85

Finding the Fourth Proportional to 3,488.60, 5,256.89 and 2,885.85

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Solution

The fourth proportional to 3,488.60, 5,256.89 and 2,885.85 is: 4,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.60 : 5,256.89 = 2,885.85 : x
  2. Step 2: Convert to fraction form
    3,488.60/5,256.89 = 2,885.85/x
  3. Step 3: Cross multiply
    3,488.60x = 5,256.89 × 2,885.85
  4. Step 4: Simplify right side
    3,488.60x = 15,170,608.63
  5. Step 5: Solve for x
    x = 15,170,608.63/3,488.60
  6. Step 6: Final answer
    x = 4,348.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.