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Finding the Fourth Proportional to 3,488.56, 5,256.84 and 2,885.83

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Solution

The fourth proportional to 3,488.56, 5,256.84 and 2,885.83 is: 4,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.56 : 5,256.84 = 2,885.83 : x
  2. Step 2: Convert to fraction form
    3,488.56/5,256.84 = 2,885.83/x
  3. Step 3: Cross multiply
    3,488.56x = 5,256.84 × 2,885.83
  4. Step 4: Simplify right side
    3,488.56x = 15,170,346.58
  5. Step 5: Solve for x
    x = 15,170,346.58/3,488.56
  6. Step 6: Final answer
    x = 4,348.60

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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.