Home / 2,279.39-3,143.35-2,033.15

Finding the Fourth Proportional to 2,279.39, 3,143.35 and 2,033.15

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Solution

The fourth proportional to 2,279.39, 3,143.35 and 2,033.15 is: 2,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.39 : 3,143.35 = 2,033.15 : x
  2. Step 2: Convert to fraction form
    2,279.39/3,143.35 = 2,033.15/x
  3. Step 3: Cross multiply
    2,279.39x = 3,143.35 × 2,033.15
  4. Step 4: Simplify right side
    2,279.39x = 6,390,902.05
  5. Step 5: Solve for x
    x = 6,390,902.05/2,279.39
  6. Step 6: Final answer
    x = 2,803.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.