Home / 3,243.78-4,863.15-1,393.38

Finding the Fourth Proportional to 3,243.78, 4,863.15 and 1,393.38

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Solution

The fourth proportional to 3,243.78, 4,863.15 and 1,393.38 is: 2,088.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.78 : 4,863.15 = 1,393.38 : x
  2. Step 2: Convert to fraction form
    3,243.78/4,863.15 = 1,393.38/x
  3. Step 3: Cross multiply
    3,243.78x = 4,863.15 × 1,393.38
  4. Step 4: Simplify right side
    3,243.78x = 6,776,215.95
  5. Step 5: Solve for x
    x = 6,776,215.95/3,243.78
  6. Step 6: Final answer
    x = 2,088.99

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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.