Home / 3,243.75-4,869.09-1,395.78

Finding the Fourth Proportional to 3,243.75, 4,869.09 and 1,395.78

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Solution

The fourth proportional to 3,243.75, 4,869.09 and 1,395.78 is: 2,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.75 : 4,869.09 = 1,395.78 : x
  2. Step 2: Convert to fraction form
    3,243.75/4,869.09 = 1,395.78/x
  3. Step 3: Cross multiply
    3,243.75x = 4,869.09 × 1,395.78
  4. Step 4: Simplify right side
    3,243.75x = 6,796,178.44
  5. Step 5: Solve for x
    x = 6,796,178.44/3,243.75
  6. Step 6: Final answer
    x = 2,095.16

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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.