Home / 3,291.21-4,936.80-1,342.14

Finding the Fourth Proportional to 3,291.21, 4,936.80 and 1,342.14

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Solution

The fourth proportional to 3,291.21, 4,936.80 and 1,342.14 is: 2,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.21 : 4,936.80 = 1,342.14 : x
  2. Step 2: Convert to fraction form
    3,291.21/4,936.80 = 1,342.14/x
  3. Step 3: Cross multiply
    3,291.21x = 4,936.80 × 1,342.14
  4. Step 4: Simplify right side
    3,291.21x = 6,625,876.75
  5. Step 5: Solve for x
    x = 6,625,876.75/3,291.21
  6. Step 6: Final answer
    x = 2,013.20

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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.