Home / 3,257.38-4,886.48-1,309.15

Finding the Fourth Proportional to 3,257.38, 4,886.48 and 1,309.15

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Solution

The fourth proportional to 3,257.38, 4,886.48 and 1,309.15 is: 1,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.38 : 4,886.48 = 1,309.15 : x
  2. Step 2: Convert to fraction form
    3,257.38/4,886.48 = 1,309.15/x
  3. Step 3: Cross multiply
    3,257.38x = 4,886.48 × 1,309.15
  4. Step 4: Simplify right side
    3,257.38x = 6,397,135.29
  5. Step 5: Solve for x
    x = 6,397,135.29/3,257.38
  6. Step 6: Final answer
    x = 1,963.89

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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.