Home / 2,291.77-3,162.66-1,243.84

Finding the Fourth Proportional to 2,291.77, 3,162.66 and 1,243.84

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Solution

The fourth proportional to 2,291.77, 3,162.66 and 1,243.84 is: 1,716.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.77 : 3,162.66 = 1,243.84 : x
  2. Step 2: Convert to fraction form
    2,291.77/3,162.66 = 1,243.84/x
  3. Step 3: Cross multiply
    2,291.77x = 3,162.66 × 1,243.84
  4. Step 4: Simplify right side
    2,291.77x = 3,933,820.98
  5. Step 5: Solve for x
    x = 3,933,820.98/2,291.77
  6. Step 6: Final answer
    x = 1,716.50

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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.