Home / 3,243-4,865.37-1,296.57

Finding the Fourth Proportional to 3,243, 4,865.37 and 1,296.57

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Solution

The fourth proportional to 3,243, 4,865.37 and 1,296.57 is: 1,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243 : 4,865.37 = 1,296.57 : x
  2. Step 2: Convert to fraction form
    3,243/4,865.37 = 1,296.57/x
  3. Step 3: Cross multiply
    3,243x = 4,865.37 × 1,296.57
  4. Step 4: Simplify right side
    3,243x = 6,308,292.78
  5. Step 5: Solve for x
    x = 6,308,292.78/3,243
  6. Step 6: Final answer
    x = 1,945.20

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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.