Home / 2,910.60-4,017.78-2,449.80

Finding the Fourth Proportional to 2,910.60, 4,017.78 and 2,449.80

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Solution

The fourth proportional to 2,910.60, 4,017.78 and 2,449.80 is: 3,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.60 : 4,017.78 = 2,449.80 : x
  2. Step 2: Convert to fraction form
    2,910.60/4,017.78 = 2,449.80/x
  3. Step 3: Cross multiply
    2,910.60x = 4,017.78 × 2,449.80
  4. Step 4: Simplify right side
    2,910.60x = 9,842,757.44
  5. Step 5: Solve for x
    x = 9,842,757.44/2,910.60
  6. Step 6: Final answer
    x = 3,381.69

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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.