Home / 3,618.52-5,427.78-1,310.04

Finding the Fourth Proportional to 3,618.52, 5,427.78 and 1,310.04

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Solution

The fourth proportional to 3,618.52, 5,427.78 and 1,310.04 is: 1,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.52 : 5,427.78 = 1,310.04 : x
  2. Step 2: Convert to fraction form
    3,618.52/5,427.78 = 1,310.04/x
  3. Step 3: Cross multiply
    3,618.52x = 5,427.78 × 1,310.04
  4. Step 4: Simplify right side
    3,618.52x = 7,110,608.91
  5. Step 5: Solve for x
    x = 7,110,608.91/3,618.52
  6. Step 6: Final answer
    x = 1,965.06

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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.