Home / 2,778.82-4,165.78-1,048.66

Finding the Fourth Proportional to 2,778.82, 4,165.78 and 1,048.66

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Solution

The fourth proportional to 2,778.82, 4,165.78 and 1,048.66 is: 1,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.82 : 4,165.78 = 1,048.66 : x
  2. Step 2: Convert to fraction form
    2,778.82/4,165.78 = 1,048.66/x
  3. Step 3: Cross multiply
    2,778.82x = 4,165.78 × 1,048.66
  4. Step 4: Simplify right side
    2,778.82x = 4,368,486.85
  5. Step 5: Solve for x
    x = 4,368,486.85/2,778.82
  6. Step 6: Final answer
    x = 1,572.07

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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.