Home / 2,391.39-3,585.69-1,418.18

Finding the Fourth Proportional to 2,391.39, 3,585.69 and 1,418.18

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Solution

The fourth proportional to 2,391.39, 3,585.69 and 1,418.18 is: 2,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.39 : 3,585.69 = 1,418.18 : x
  2. Step 2: Convert to fraction form
    2,391.39/3,585.69 = 1,418.18/x
  3. Step 3: Cross multiply
    2,391.39x = 3,585.69 × 1,418.18
  4. Step 4: Simplify right side
    2,391.39x = 5,085,135.92
  5. Step 5: Solve for x
    x = 5,085,135.92/2,391.39
  6. Step 6: Final answer
    x = 2,126.44

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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.