Home / 3,679.12-5,077.22-2,107.18

Finding the Fourth Proportional to 3,679.12, 5,077.22 and 2,107.18

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Solution

The fourth proportional to 3,679.12, 5,077.22 and 2,107.18 is: 2,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.12 : 5,077.22 = 2,107.18 : x
  2. Step 2: Convert to fraction form
    3,679.12/5,077.22 = 2,107.18/x
  3. Step 3: Cross multiply
    3,679.12x = 5,077.22 × 2,107.18
  4. Step 4: Simplify right side
    3,679.12x = 10,698,616.44
  5. Step 5: Solve for x
    x = 10,698,616.44/3,679.12
  6. Step 6: Final answer
    x = 2,907.93

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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.