Home / 3,279.80-4,523.56-2,100.98

Finding the Fourth Proportional to 3,279.80, 4,523.56 and 2,100.98

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Solution

The fourth proportional to 3,279.80, 4,523.56 and 2,100.98 is: 2,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.80 : 4,523.56 = 2,100.98 : x
  2. Step 2: Convert to fraction form
    3,279.80/4,523.56 = 2,100.98/x
  3. Step 3: Cross multiply
    3,279.80x = 4,523.56 × 2,100.98
  4. Step 4: Simplify right side
    3,279.80x = 9,503,881.22
  5. Step 5: Solve for x
    x = 9,503,881.22/3,279.80
  6. Step 6: Final answer
    x = 2,897.71

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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.