Home / 4,939.68-7,406.28-3,209.52

Finding the Fourth Proportional to 4,939.68, 7,406.28 and 3,209.52

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Solution

The fourth proportional to 4,939.68, 7,406.28 and 3,209.52 is: 4,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.68 : 7,406.28 = 3,209.52 : x
  2. Step 2: Convert to fraction form
    4,939.68/7,406.28 = 3,209.52/x
  3. Step 3: Cross multiply
    4,939.68x = 7,406.28 × 3,209.52
  4. Step 4: Simplify right side
    4,939.68x = 23,770,603.79
  5. Step 5: Solve for x
    x = 23,770,603.79/4,939.68
  6. Step 6: Final answer
    x = 4,812.17

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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.