Home / 2,778.80-4,169.84-1,025.03

Finding the Fourth Proportional to 2,778.80, 4,169.84 and 1,025.03

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Solution

The fourth proportional to 2,778.80, 4,169.84 and 1,025.03 is: 1,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.80 : 4,169.84 = 1,025.03 : x
  2. Step 2: Convert to fraction form
    2,778.80/4,169.84 = 1,025.03/x
  3. Step 3: Cross multiply
    2,778.80x = 4,169.84 × 1,025.03
  4. Step 4: Simplify right side
    2,778.80x = 4,274,185.12
  5. Step 5: Solve for x
    x = 4,274,185.12/2,778.80
  6. Step 6: Final answer
    x = 1,538.14

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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.