Home / 3,257.90-4,888.60-2,162.78

Finding the Fourth Proportional to 3,257.90, 4,888.60 and 2,162.78

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Solution

The fourth proportional to 3,257.90, 4,888.60 and 2,162.78 is: 3,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.90 : 4,888.60 = 2,162.78 : x
  2. Step 2: Convert to fraction form
    3,257.90/4,888.60 = 2,162.78/x
  3. Step 3: Cross multiply
    3,257.90x = 4,888.60 × 2,162.78
  4. Step 4: Simplify right side
    3,257.90x = 10,572,966.31
  5. Step 5: Solve for x
    x = 10,572,966.31/3,257.90
  6. Step 6: Final answer
    x = 3,245.33

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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.