Home / 3,279.30-4,922.15-1,637.70

Finding the Fourth Proportional to 3,279.30, 4,922.15 and 1,637.70

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Solution

The fourth proportional to 3,279.30, 4,922.15 and 1,637.70 is: 2,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.30 : 4,922.15 = 1,637.70 : x
  2. Step 2: Convert to fraction form
    3,279.30/4,922.15 = 1,637.70/x
  3. Step 3: Cross multiply
    3,279.30x = 4,922.15 × 1,637.70
  4. Step 4: Simplify right side
    3,279.30x = 8,061,005.06
  5. Step 5: Solve for x
    x = 8,061,005.06/3,279.30
  6. Step 6: Final answer
    x = 2,458.15

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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.