Home / 3,399.88-4,691.72-1,908.12

Finding the Fourth Proportional to 3,399.88, 4,691.72 and 1,908.12

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Solution

The fourth proportional to 3,399.88, 4,691.72 and 1,908.12 is: 2,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.88 : 4,691.72 = 1,908.12 : x
  2. Step 2: Convert to fraction form
    3,399.88/4,691.72 = 1,908.12/x
  3. Step 3: Cross multiply
    3,399.88x = 4,691.72 × 1,908.12
  4. Step 4: Simplify right side
    3,399.88x = 8,952,364.77
  5. Step 5: Solve for x
    x = 8,952,364.77/3,399.88
  6. Step 6: Final answer
    x = 2,633.14

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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.