Home / 2,279.70-3,159.21-2,235.96

Finding the Fourth Proportional to 2,279.70, 3,159.21 and 2,235.96

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Solution

The fourth proportional to 2,279.70, 3,159.21 and 2,235.96 is: 3,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.70 : 3,159.21 = 2,235.96 : x
  2. Step 2: Convert to fraction form
    2,279.70/3,159.21 = 2,235.96/x
  3. Step 3: Cross multiply
    2,279.70x = 3,159.21 × 2,235.96
  4. Step 4: Simplify right side
    2,279.70x = 7,063,867.19
  5. Step 5: Solve for x
    x = 7,063,867.19/2,279.70
  6. Step 6: Final answer
    x = 3,098.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.