Home / 2,339.24-3,228.26-1,291.40

Finding the Fourth Proportional to 2,339.24, 3,228.26 and 1,291.40

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Solution

The fourth proportional to 2,339.24, 3,228.26 and 1,291.40 is: 1,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.24 : 3,228.26 = 1,291.40 : x
  2. Step 2: Convert to fraction form
    2,339.24/3,228.26 = 1,291.40/x
  3. Step 3: Cross multiply
    2,339.24x = 3,228.26 × 1,291.40
  4. Step 4: Simplify right side
    2,339.24x = 4,168,974.96
  5. Step 5: Solve for x
    x = 4,168,974.96/2,339.24
  6. Step 6: Final answer
    x = 1,782.19

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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.