Home / 2,778.89-3,835.79-1,600.25

Finding the Fourth Proportional to 2,778.89, 3,835.79 and 1,600.25

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Solution

The fourth proportional to 2,778.89, 3,835.79 and 1,600.25 is: 2,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.89 : 3,835.79 = 1,600.25 : x
  2. Step 2: Convert to fraction form
    2,778.89/3,835.79 = 1,600.25/x
  3. Step 3: Cross multiply
    2,778.89x = 3,835.79 × 1,600.25
  4. Step 4: Simplify right side
    2,778.89x = 6,138,214.95
  5. Step 5: Solve for x
    x = 6,138,214.95/2,778.89
  6. Step 6: Final answer
    x = 2,208.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.