Home / 3,618.64-5,427.82-1,310.14

Finding the Fourth Proportional to 3,618.64, 5,427.82 and 1,310.14

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Solution

The fourth proportional to 3,618.64, 5,427.82 and 1,310.14 is: 1,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.64 : 5,427.82 = 1,310.14 : x
  2. Step 2: Convert to fraction form
    3,618.64/5,427.82 = 1,310.14/x
  3. Step 3: Cross multiply
    3,618.64x = 5,427.82 × 1,310.14
  4. Step 4: Simplify right side
    3,618.64x = 7,111,170.41
  5. Step 5: Solve for x
    x = 7,111,170.41/3,618.64
  6. Step 6: Final answer
    x = 1,965.15

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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.