Home / 5,481.36-7,563.96-3,123.72

Finding the Fourth Proportional to 5,481.36, 7,563.96 and 3,123.72

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Solution

The fourth proportional to 5,481.36, 7,563.96 and 3,123.72 is: 4,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.36 : 7,563.96 = 3,123.72 : x
  2. Step 2: Convert to fraction form
    5,481.36/7,563.96 = 3,123.72/x
  3. Step 3: Cross multiply
    5,481.36x = 7,563.96 × 3,123.72
  4. Step 4: Simplify right side
    5,481.36x = 23,627,693.13
  5. Step 5: Solve for x
    x = 23,627,693.13/5,481.36
  6. Step 6: Final answer
    x = 4,310.55

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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.