Home / 2,339.29-3,228.06-1,291.36

Finding the Fourth Proportional to 2,339.29, 3,228.06 and 1,291.36

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Solution

The fourth proportional to 2,339.29, 3,228.06 and 1,291.36 is: 1,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.29 : 3,228.06 = 1,291.36 : x
  2. Step 2: Convert to fraction form
    2,339.29/3,228.06 = 1,291.36/x
  3. Step 3: Cross multiply
    2,339.29x = 3,228.06 × 1,291.36
  4. Step 4: Simplify right side
    2,339.29x = 4,168,587.56
  5. Step 5: Solve for x
    x = 4,168,587.56/2,339.29
  6. Step 6: Final answer
    x = 1,781.99

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1.5x scale

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.