Home / 4,920.60-6,788.97-3,149.13

Finding the Fourth Proportional to 4,920.60, 6,788.97 and 3,149.13

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Solution

The fourth proportional to 4,920.60, 6,788.97 and 3,149.13 is: 4,344.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.60 : 6,788.97 = 3,149.13 : x
  2. Step 2: Convert to fraction form
    4,920.60/6,788.97 = 3,149.13/x
  3. Step 3: Cross multiply
    4,920.60x = 6,788.97 × 3,149.13
  4. Step 4: Simplify right side
    4,920.60x = 21,379,349.10
  5. Step 5: Solve for x
    x = 21,379,349.10/4,920.60
  6. Step 6: Final answer
    x = 4,344.87

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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.