Home / 5,481.29-8,220.17-1,782.62

Finding the Fourth Proportional to 5,481.29, 8,220.17 and 1,782.62

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Solution

The fourth proportional to 5,481.29, 8,220.17 and 1,782.62 is: 2,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.29 : 8,220.17 = 1,782.62 : x
  2. Step 2: Convert to fraction form
    5,481.29/8,220.17 = 1,782.62/x
  3. Step 3: Cross multiply
    5,481.29x = 8,220.17 × 1,782.62
  4. Step 4: Simplify right side
    5,481.29x = 14,653,439.45
  5. Step 5: Solve for x
    x = 14,653,439.45/5,481.29
  6. Step 6: Final answer
    x = 2,673.36

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.