Home / 3,408.02-5,107.78-2,943.90

Finding the Fourth Proportional to 3,408.02, 5,107.78 and 2,943.90

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Solution

The fourth proportional to 3,408.02, 5,107.78 and 2,943.90 is: 4,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.02 : 5,107.78 = 2,943.90 : x
  2. Step 2: Convert to fraction form
    3,408.02/5,107.78 = 2,943.90/x
  3. Step 3: Cross multiply
    3,408.02x = 5,107.78 × 2,943.90
  4. Step 4: Simplify right side
    3,408.02x = 15,036,793.54
  5. Step 5: Solve for x
    x = 15,036,793.54/3,408.02
  6. Step 6: Final answer
    x = 4,412.18

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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.