Home / 4,845.78-7,261.11-3,871.62

Finding the Fourth Proportional to 4,845.78, 7,261.11 and 3,871.62

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Solution

The fourth proportional to 4,845.78, 7,261.11 and 3,871.62 is: 5,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.78 : 7,261.11 = 3,871.62 : x
  2. Step 2: Convert to fraction form
    4,845.78/7,261.11 = 3,871.62/x
  3. Step 3: Cross multiply
    4,845.78x = 7,261.11 × 3,871.62
  4. Step 4: Simplify right side
    4,845.78x = 28,112,258.70
  5. Step 5: Solve for x
    x = 28,112,258.70/4,845.78
  6. Step 6: Final answer
    x = 5,801.39

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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.