Home / 2,339.12-3,227.99-1,291.19

Finding the Fourth Proportional to 2,339.12, 3,227.99 and 1,291.19

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Solution

The fourth proportional to 2,339.12, 3,227.99 and 1,291.19 is: 1,781.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.12 : 3,227.99 = 1,291.19 : x
  2. Step 2: Convert to fraction form
    2,339.12/3,227.99 = 1,291.19/x
  3. Step 3: Cross multiply
    2,339.12x = 3,227.99 × 1,291.19
  4. Step 4: Simplify right side
    2,339.12x = 4,167,925.81
  5. Step 5: Solve for x
    x = 4,167,925.81/2,339.12
  6. Step 6: Final answer
    x = 1,781.83

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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.