Home / 3,982.24-5,978.80-2,746.60

Finding the Fourth Proportional to 3,982.24, 5,978.80 and 2,746.60

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Solution

The fourth proportional to 3,982.24, 5,978.80 and 2,746.60 is: 4,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.24 : 5,978.80 = 2,746.60 : x
  2. Step 2: Convert to fraction form
    3,982.24/5,978.80 = 2,746.60/x
  3. Step 3: Cross multiply
    3,982.24x = 5,978.80 × 2,746.60
  4. Step 4: Simplify right side
    3,982.24x = 16,421,372.08
  5. Step 5: Solve for x
    x = 16,421,372.08/3,982.24
  6. Step 6: Final answer
    x = 4,123.65

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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.