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Finding the Fourth Proportional to 2,279.08, 3,419.42 and 963.16

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Solution

The fourth proportional to 2,279.08, 3,419.42 and 963.16 is: 1,445.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.08 : 3,419.42 = 963.16 : x
  2. Step 2: Convert to fraction form
    2,279.08/3,419.42 = 963.16/x
  3. Step 3: Cross multiply
    2,279.08x = 3,419.42 × 963.16
  4. Step 4: Simplify right side
    2,279.08x = 3,293,448.57
  5. Step 5: Solve for x
    x = 3,293,448.57/2,279.08
  6. Step 6: Final answer
    x = 1,445.08

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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.