Home / 3,279.13-4,915.72-1,636.18

Finding the Fourth Proportional to 3,279.13, 4,915.72 and 1,636.18

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Solution

The fourth proportional to 3,279.13, 4,915.72 and 1,636.18 is: 2,452.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.13 : 4,915.72 = 1,636.18 : x
  2. Step 2: Convert to fraction form
    3,279.13/4,915.72 = 1,636.18/x
  3. Step 3: Cross multiply
    3,279.13x = 4,915.72 × 1,636.18
  4. Step 4: Simplify right side
    3,279.13x = 8,043,002.75
  5. Step 5: Solve for x
    x = 8,043,002.75/3,279.13
  6. Step 6: Final answer
    x = 2,452.79

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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.