Home / 2,252.16-3,380.40-1,279.08

Finding the Fourth Proportional to 2,252.16, 3,380.40 and 1,279.08

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Solution

The fourth proportional to 2,252.16, 3,380.40 and 1,279.08 is: 1,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.16 : 3,380.40 = 1,279.08 : x
  2. Step 2: Convert to fraction form
    2,252.16/3,380.40 = 1,279.08/x
  3. Step 3: Cross multiply
    2,252.16x = 3,380.40 × 1,279.08
  4. Step 4: Simplify right side
    2,252.16x = 4,323,802.03
  5. Step 5: Solve for x
    x = 4,323,802.03/2,252.16
  6. Step 6: Final answer
    x = 1,919.85

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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.