Home / 4,893.80-7,340.76-2,119.95

Finding the Fourth Proportional to 4,893.80, 7,340.76 and 2,119.95

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Solution

The fourth proportional to 4,893.80, 7,340.76 and 2,119.95 is: 3,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.80 : 7,340.76 = 2,119.95 : x
  2. Step 2: Convert to fraction form
    4,893.80/7,340.76 = 2,119.95/x
  3. Step 3: Cross multiply
    4,893.80x = 7,340.76 × 2,119.95
  4. Step 4: Simplify right side
    4,893.80x = 15,562,044.16
  5. Step 5: Solve for x
    x = 15,562,044.16/4,893.80
  6. Step 6: Final answer
    x = 3,179.95

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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.