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Finding the Fourth Proportional to 2,398.50, 3,309.84 and 1,336.22

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Solution

The fourth proportional to 2,398.50, 3,309.84 and 1,336.22 is: 1,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.50 : 3,309.84 = 1,336.22 : x
  2. Step 2: Convert to fraction form
    2,398.50/3,309.84 = 1,336.22/x
  3. Step 3: Cross multiply
    2,398.50x = 3,309.84 × 1,336.22
  4. Step 4: Simplify right side
    2,398.50x = 4,422,674.40
  5. Step 5: Solve for x
    x = 4,422,674.40/2,398.50
  6. Step 6: Final answer
    x = 1,843.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.