Home / 2,751.78-4,133.18-1,643.36

Finding the Fourth Proportional to 2,751.78, 4,133.18 and 1,643.36

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Solution

The fourth proportional to 2,751.78, 4,133.18 and 1,643.36 is: 2,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.78 : 4,133.18 = 1,643.36 : x
  2. Step 2: Convert to fraction form
    2,751.78/4,133.18 = 1,643.36/x
  3. Step 3: Cross multiply
    2,751.78x = 4,133.18 × 1,643.36
  4. Step 4: Simplify right side
    2,751.78x = 6,792,294.47
  5. Step 5: Solve for x
    x = 6,792,294.47/2,751.78
  6. Step 6: Final answer
    x = 2,468.33

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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.