Home / 2,268.80-3,401.67-787.64

Finding the Fourth Proportional to 2,268.80, 3,401.67 and 787.64

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Solution

The fourth proportional to 2,268.80, 3,401.67 and 787.64 is: 1,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.80 : 3,401.67 = 787.64 : x
  2. Step 2: Convert to fraction form
    2,268.80/3,401.67 = 787.64/x
  3. Step 3: Cross multiply
    2,268.80x = 3,401.67 × 787.64
  4. Step 4: Simplify right side
    2,268.80x = 2,679,291.36
  5. Step 5: Solve for x
    x = 2,679,291.36/2,268.80
  6. Step 6: Final answer
    x = 1,180.93

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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.