Home / 3,980.91-5,495.19-2,654.13

Finding the Fourth Proportional to 3,980.91, 5,495.19 and 2,654.13

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Solution

The fourth proportional to 3,980.91, 5,495.19 and 2,654.13 is: 3,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.91 : 5,495.19 = 2,654.13 : x
  2. Step 2: Convert to fraction form
    3,980.91/5,495.19 = 2,654.13/x
  3. Step 3: Cross multiply
    3,980.91x = 5,495.19 × 2,654.13
  4. Step 4: Simplify right side
    3,980.91x = 14,584,974.22
  5. Step 5: Solve for x
    x = 14,584,974.22/3,980.91
  6. Step 6: Final answer
    x = 3,663.73

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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.