Home / 2,766.68-3,821.75-2,569.85

Finding the Fourth Proportional to 2,766.68, 3,821.75 and 2,569.85

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Solution

The fourth proportional to 2,766.68, 3,821.75 and 2,569.85 is: 3,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.68 : 3,821.75 = 2,569.85 : x
  2. Step 2: Convert to fraction form
    2,766.68/3,821.75 = 2,569.85/x
  3. Step 3: Cross multiply
    2,766.68x = 3,821.75 × 2,569.85
  4. Step 4: Simplify right side
    2,766.68x = 9,821,311.39
  5. Step 5: Solve for x
    x = 9,821,311.39/2,766.68
  6. Step 6: Final answer
    x = 3,549.85

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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.