Home / 2,688.88-4,032.18-1,226.56

Finding the Fourth Proportional to 2,688.88, 4,032.18 and 1,226.56

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Solution

The fourth proportional to 2,688.88, 4,032.18 and 1,226.56 is: 1,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.88 : 4,032.18 = 1,226.56 : x
  2. Step 2: Convert to fraction form
    2,688.88/4,032.18 = 1,226.56/x
  3. Step 3: Cross multiply
    2,688.88x = 4,032.18 × 1,226.56
  4. Step 4: Simplify right side
    2,688.88x = 4,945,710.70
  5. Step 5: Solve for x
    x = 4,945,710.70/2,688.88
  6. Step 6: Final answer
    x = 1,839.32

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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.