Home / 3,107.56-4,283.62-2,758.12

Finding the Fourth Proportional to 3,107.56, 4,283.62 and 2,758.12

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Solution

The fourth proportional to 3,107.56, 4,283.62 and 2,758.12 is: 3,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.56 : 4,283.62 = 2,758.12 : x
  2. Step 2: Convert to fraction form
    3,107.56/4,283.62 = 2,758.12/x
  3. Step 3: Cross multiply
    3,107.56x = 4,283.62 × 2,758.12
  4. Step 4: Simplify right side
    3,107.56x = 11,814,737.99
  5. Step 5: Solve for x
    x = 11,814,737.99/3,107.56
  6. Step 6: Final answer
    x = 3,801.93

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1.5x scale

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.