Home / 3,279.14-4,921.50-1,635.20

Finding the Fourth Proportional to 3,279.14, 4,921.50 and 1,635.20

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Solution

The fourth proportional to 3,279.14, 4,921.50 and 1,635.20 is: 2,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.14 : 4,921.50 = 1,635.20 : x
  2. Step 2: Convert to fraction form
    3,279.14/4,921.50 = 1,635.20/x
  3. Step 3: Cross multiply
    3,279.14x = 4,921.50 × 1,635.20
  4. Step 4: Simplify right side
    3,279.14x = 8,047,636.80
  5. Step 5: Solve for x
    x = 8,047,636.80/3,279.14
  6. Step 6: Final answer
    x = 2,454.19

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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.