Home / 3,400.28-4,691.84-1,908.20

Finding the Fourth Proportional to 3,400.28, 4,691.84 and 1,908.20

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Solution

The fourth proportional to 3,400.28, 4,691.84 and 1,908.20 is: 2,633.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.28 : 4,691.84 = 1,908.20 : x
  2. Step 2: Convert to fraction form
    3,400.28/4,691.84 = 1,908.20/x
  3. Step 3: Cross multiply
    3,400.28x = 4,691.84 × 1,908.20
  4. Step 4: Simplify right side
    3,400.28x = 8,952,969.09
  5. Step 5: Solve for x
    x = 8,952,969.09/3,400.28
  6. Step 6: Final answer
    x = 2,633.01

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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.