Home / 2,339.26-3,228.03-1,291.18

Finding the Fourth Proportional to 2,339.26, 3,228.03 and 1,291.18

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Solution

The fourth proportional to 2,339.26, 3,228.03 and 1,291.18 is: 1,781.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.26 : 3,228.03 = 1,291.18 : x
  2. Step 2: Convert to fraction form
    2,339.26/3,228.03 = 1,291.18/x
  3. Step 3: Cross multiply
    2,339.26x = 3,228.03 × 1,291.18
  4. Step 4: Simplify right side
    2,339.26x = 4,167,967.78
  5. Step 5: Solve for x
    x = 4,167,967.78/2,339.26
  6. Step 6: Final answer
    x = 1,781.75

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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.