Home / 4,918.91-7,378.42-3,937.96

Finding the Fourth Proportional to 4,918.91, 7,378.42 and 3,937.96

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Solution

The fourth proportional to 4,918.91, 7,378.42 and 3,937.96 is: 5,906.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.91 : 7,378.42 = 3,937.96 : x
  2. Step 2: Convert to fraction form
    4,918.91/7,378.42 = 3,937.96/x
  3. Step 3: Cross multiply
    4,918.91x = 7,378.42 × 3,937.96
  4. Step 4: Simplify right side
    4,918.91x = 29,055,929.58
  5. Step 5: Solve for x
    x = 29,055,929.58/4,918.91
  6. Step 6: Final answer
    x = 5,906.98

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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.