Home / 3,078.90-4,616.82-1,323.72

Finding the Fourth Proportional to 3,078.90, 4,616.82 and 1,323.72

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Solution

The fourth proportional to 3,078.90, 4,616.82 and 1,323.72 is: 1,984.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.90 : 4,616.82 = 1,323.72 : x
  2. Step 2: Convert to fraction form
    3,078.90/4,616.82 = 1,323.72/x
  3. Step 3: Cross multiply
    3,078.90x = 4,616.82 × 1,323.72
  4. Step 4: Simplify right side
    3,078.90x = 6,111,376.97
  5. Step 5: Solve for x
    x = 6,111,376.97/3,078.90
  6. Step 6: Final answer
    x = 1,984.92

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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.