Home / 7,641.36-11,462.16-3,481.20

Finding the Fourth Proportional to 7,641.36, 11,462.16 and 3,481.20

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Solution

The fourth proportional to 7,641.36, 11,462.16 and 3,481.20 is: 5,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.36 : 11,462.16 = 3,481.20 : x
  2. Step 2: Convert to fraction form
    7,641.36/11,462.16 = 3,481.20/x
  3. Step 3: Cross multiply
    7,641.36x = 11,462.16 × 3,481.20
  4. Step 4: Simplify right side
    7,641.36x = 39,902,071.39
  5. Step 5: Solve for x
    x = 39,902,071.39/7,641.36
  6. Step 6: Final answer
    x = 5,221.85

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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.