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Finding the Fourth Proportional to 3,480.33, 4,803.07 and 1,908.42

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Solution

The fourth proportional to 3,480.33, 4,803.07 and 1,908.42 is: 2,633.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.33 : 4,803.07 = 1,908.42 : x
  2. Step 2: Convert to fraction form
    3,480.33/4,803.07 = 1,908.42/x
  3. Step 3: Cross multiply
    3,480.33x = 4,803.07 × 1,908.42
  4. Step 4: Simplify right side
    3,480.33x = 9,166,274.85
  5. Step 5: Solve for x
    x = 9,166,274.85/3,480.33
  6. Step 6: Final answer
    x = 2,633.74

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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.