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Finding the Fourth Proportional to 5,290.68, 7,936.02 and 1,395.39

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Solution

The fourth proportional to 5,290.68, 7,936.02 and 1,395.39 is: 2,093.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.68 : 7,936.02 = 1,395.39 : x
  2. Step 2: Convert to fraction form
    5,290.68/7,936.02 = 1,395.39/x
  3. Step 3: Cross multiply
    5,290.68x = 7,936.02 × 1,395.39
  4. Step 4: Simplify right side
    5,290.68x = 11,073,842.95
  5. Step 5: Solve for x
    x = 11,073,842.95/5,290.68
  6. Step 6: Final answer
    x = 2,093.09

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Similar ratio
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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.