Home / 2,555.68-3,834.99-1,074.78

Finding the Fourth Proportional to 2,555.68, 3,834.99 and 1,074.78

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Solution

The fourth proportional to 2,555.68, 3,834.99 and 1,074.78 is: 1,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.68 : 3,834.99 = 1,074.78 : x
  2. Step 2: Convert to fraction form
    2,555.68/3,834.99 = 1,074.78/x
  3. Step 3: Cross multiply
    2,555.68x = 3,834.99 × 1,074.78
  4. Step 4: Simplify right side
    2,555.68x = 4,121,774.58
  5. Step 5: Solve for x
    x = 4,121,774.58/2,555.68
  6. Step 6: Final answer
    x = 1,612.79

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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.