Home / 2,778.82-4,167.20-1,134.47

Finding the Fourth Proportional to 2,778.82, 4,167.20 and 1,134.47

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Solution

The fourth proportional to 2,778.82, 4,167.20 and 1,134.47 is: 1,701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.82 : 4,167.20 = 1,134.47 : x
  2. Step 2: Convert to fraction form
    2,778.82/4,167.20 = 1,134.47/x
  3. Step 3: Cross multiply
    2,778.82x = 4,167.20 × 1,134.47
  4. Step 4: Simplify right side
    2,778.82x = 4,727,563.38
  5. Step 5: Solve for x
    x = 4,727,563.38/2,778.82
  6. Step 6: Final answer
    x = 1,701.28

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1.5x scale

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.