Home / 2,784.96-3,839.94-1,790.28

Finding the Fourth Proportional to 2,784.96, 3,839.94 and 1,790.28

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Solution

The fourth proportional to 2,784.96, 3,839.94 and 1,790.28 is: 2,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.96 : 3,839.94 = 1,790.28 : x
  2. Step 2: Convert to fraction form
    2,784.96/3,839.94 = 1,790.28/x
  3. Step 3: Cross multiply
    2,784.96x = 3,839.94 × 1,790.28
  4. Step 4: Simplify right side
    2,784.96x = 6,874,567.78
  5. Step 5: Solve for x
    x = 6,874,567.78/2,784.96
  6. Step 6: Final answer
    x = 2,468.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.