Home / 2,778.30-4,167.18-1,682.37

Finding the Fourth Proportional to 2,778.30, 4,167.18 and 1,682.37

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Solution

The fourth proportional to 2,778.30, 4,167.18 and 1,682.37 is: 2,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.30 : 4,167.18 = 1,682.37 : x
  2. Step 2: Convert to fraction form
    2,778.30/4,167.18 = 1,682.37/x
  3. Step 3: Cross multiply
    2,778.30x = 4,167.18 × 1,682.37
  4. Step 4: Simplify right side
    2,778.30x = 7,010,738.62
  5. Step 5: Solve for x
    x = 7,010,738.62/2,778.30
  6. Step 6: Final answer
    x = 2,523.39

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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.