Home / 3,469.43-4,787.37-1,977.15

Finding the Fourth Proportional to 3,469.43, 4,787.37 and 1,977.15

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Solution

The fourth proportional to 3,469.43, 4,787.37 and 1,977.15 is: 2,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.43 : 4,787.37 = 1,977.15 : x
  2. Step 2: Convert to fraction form
    3,469.43/4,787.37 = 1,977.15/x
  3. Step 3: Cross multiply
    3,469.43x = 4,787.37 × 1,977.15
  4. Step 4: Simplify right side
    3,469.43x = 9,465,348.60
  5. Step 5: Solve for x
    x = 9,465,348.60/3,469.43
  6. Step 6: Final answer
    x = 2,728.22

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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.