Home / 1,813.19-2,718.50-1,226.75

Finding the Fourth Proportional to 1,813.19, 2,718.50 and 1,226.75

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Solution

The fourth proportional to 1,813.19, 2,718.50 and 1,226.75 is: 1,839.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.19 : 2,718.50 = 1,226.75 : x
  2. Step 2: Convert to fraction form
    1,813.19/2,718.50 = 1,226.75/x
  3. Step 3: Cross multiply
    1,813.19x = 2,718.50 × 1,226.75
  4. Step 4: Simplify right side
    1,813.19x = 3,334,900.15
  5. Step 5: Solve for x
    x = 3,334,900.15/1,813.19
  6. Step 6: Final answer
    x = 1,839.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.