Home / 3,279.78-4,920.93-2,667.42

Finding the Fourth Proportional to 3,279.78, 4,920.93 and 2,667.42

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Solution

The fourth proportional to 3,279.78, 4,920.93 and 2,667.42 is: 4,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.78 : 4,920.93 = 2,667.42 : x
  2. Step 2: Convert to fraction form
    3,279.78/4,920.93 = 2,667.42/x
  3. Step 3: Cross multiply
    3,279.78x = 4,920.93 × 2,667.42
  4. Step 4: Simplify right side
    3,279.78x = 13,126,187.10
  5. Step 5: Solve for x
    x = 13,126,187.10/3,279.78
  6. Step 6: Final answer
    x = 4,002.15

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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.