Home / 2,821.80-4,214.85-2,744.04

Finding the Fourth Proportional to 2,821.80, 4,214.85 and 2,744.04

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Solution

The fourth proportional to 2,821.80, 4,214.85 and 2,744.04 is: 4,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.80 : 4,214.85 = 2,744.04 : x
  2. Step 2: Convert to fraction form
    2,821.80/4,214.85 = 2,744.04/x
  3. Step 3: Cross multiply
    2,821.80x = 4,214.85 × 2,744.04
  4. Step 4: Simplify right side
    2,821.80x = 11,565,716.99
  5. Step 5: Solve for x
    x = 11,565,716.99/2,821.80
  6. Step 6: Final answer
    x = 4,098.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.