Home / 3,982.67-5,495.48-2,280.91

Finding the Fourth Proportional to 3,982.67, 5,495.48 and 2,280.91

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Solution

The fourth proportional to 3,982.67, 5,495.48 and 2,280.91 is: 3,147.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.67 : 5,495.48 = 2,280.91 : x
  2. Step 2: Convert to fraction form
    3,982.67/5,495.48 = 2,280.91/x
  3. Step 3: Cross multiply
    3,982.67x = 5,495.48 × 2,280.91
  4. Step 4: Simplify right side
    3,982.67x = 12,534,722.44
  5. Step 5: Solve for x
    x = 12,534,722.44/3,982.67
  6. Step 6: Final answer
    x = 3,147.31

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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.