Home / 4,937.78-7,400.09-2,161.43

Finding the Fourth Proportional to 4,937.78, 7,400.09 and 2,161.43

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Solution

The fourth proportional to 4,937.78, 7,400.09 and 2,161.43 is: 3,239.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,937.78 : 7,400.09 = 2,161.43 : x
  2. Step 2: Convert to fraction form
    4,937.78/7,400.09 = 2,161.43/x
  3. Step 3: Cross multiply
    4,937.78x = 7,400.09 × 2,161.43
  4. Step 4: Simplify right side
    4,937.78x = 15,994,762.92
  5. Step 5: Solve for x
    x = 15,994,762.92/4,937.78
  6. Step 6: Final answer
    x = 3,239.26

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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.