Home / 4,279.12-5,903.40-2,879.44

Finding the Fourth Proportional to 4,279.12, 5,903.40 and 2,879.44

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Solution

The fourth proportional to 4,279.12, 5,903.40 and 2,879.44 is: 3,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.12 : 5,903.40 = 2,879.44 : x
  2. Step 2: Convert to fraction form
    4,279.12/5,903.40 = 2,879.44/x
  3. Step 3: Cross multiply
    4,279.12x = 5,903.40 × 2,879.44
  4. Step 4: Simplify right side
    4,279.12x = 16,998,486.10
  5. Step 5: Solve for x
    x = 16,998,486.10/4,279.12
  6. Step 6: Final answer
    x = 3,972.43

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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.