Home / 3,778.07-5,212.49-2,285.42

Finding the Fourth Proportional to 3,778.07, 5,212.49 and 2,285.42

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Solution

The fourth proportional to 3,778.07, 5,212.49 and 2,285.42 is: 3,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.07 : 5,212.49 = 2,285.42 : x
  2. Step 2: Convert to fraction form
    3,778.07/5,212.49 = 2,285.42/x
  3. Step 3: Cross multiply
    3,778.07x = 5,212.49 × 2,285.42
  4. Step 4: Simplify right side
    3,778.07x = 11,912,691.41
  5. Step 5: Solve for x
    x = 11,912,691.41/3,778.07
  6. Step 6: Final answer
    x = 3,153.12

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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.