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Finding the Fourth Proportional to 3,908.84, 5,852.22 and 3,124.84

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Solution

The fourth proportional to 3,908.84, 5,852.22 and 3,124.84 is: 4,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.84 : 5,852.22 = 3,124.84 : x
  2. Step 2: Convert to fraction form
    3,908.84/5,852.22 = 3,124.84/x
  3. Step 3: Cross multiply
    3,908.84x = 5,852.22 × 3,124.84
  4. Step 4: Simplify right side
    3,908.84x = 18,287,251.14
  5. Step 5: Solve for x
    x = 18,287,251.14/3,908.84
  6. Step 6: Final answer
    x = 4,678.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.