Home / 3,801.78-5,243.94-2,228.76

Finding the Fourth Proportional to 3,801.78, 5,243.94 and 2,228.76

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Solution

The fourth proportional to 3,801.78, 5,243.94 and 2,228.76 is: 3,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.78 : 5,243.94 = 2,228.76 : x
  2. Step 2: Convert to fraction form
    3,801.78/5,243.94 = 2,228.76/x
  3. Step 3: Cross multiply
    3,801.78x = 5,243.94 × 2,228.76
  4. Step 4: Simplify right side
    3,801.78x = 11,687,483.71
  5. Step 5: Solve for x
    x = 11,687,483.71/3,801.78
  6. Step 6: Final answer
    x = 3,074.21

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Half scale
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Double scale
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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.