Home / 2,291.68-3,162.52-1,243.74

Finding the Fourth Proportional to 2,291.68, 3,162.52 and 1,243.74

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Solution

The fourth proportional to 2,291.68, 3,162.52 and 1,243.74 is: 1,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.68 : 3,162.52 = 1,243.74 : x
  2. Step 2: Convert to fraction form
    2,291.68/3,162.52 = 1,243.74/x
  3. Step 3: Cross multiply
    2,291.68x = 3,162.52 × 1,243.74
  4. Step 4: Simplify right side
    2,291.68x = 3,933,346.41
  5. Step 5: Solve for x
    x = 3,933,346.41/2,291.68
  6. Step 6: Final answer
    x = 1,716.36

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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.