Home / 2,287.84-3,431.76-1,268.32

Finding the Fourth Proportional to 2,287.84, 3,431.76 and 1,268.32

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Solution

The fourth proportional to 2,287.84, 3,431.76 and 1,268.32 is: 1,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.84 : 3,431.76 = 1,268.32 : x
  2. Step 2: Convert to fraction form
    2,287.84/3,431.76 = 1,268.32/x
  3. Step 3: Cross multiply
    2,287.84x = 3,431.76 × 1,268.32
  4. Step 4: Simplify right side
    2,287.84x = 4,352,569.84
  5. Step 5: Solve for x
    x = 4,352,569.84/2,287.84
  6. Step 6: Final answer
    x = 1,902.48

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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.