Home / 3,821.09-5,738.45-3,129.08

Finding the Fourth Proportional to 3,821.09, 5,738.45 and 3,129.08

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Solution

The fourth proportional to 3,821.09, 5,738.45 and 3,129.08 is: 4,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.09 : 5,738.45 = 3,129.08 : x
  2. Step 2: Convert to fraction form
    3,821.09/5,738.45 = 3,129.08/x
  3. Step 3: Cross multiply
    3,821.09x = 5,738.45 × 3,129.08
  4. Step 4: Simplify right side
    3,821.09x = 17,956,024.79
  5. Step 5: Solve for x
    x = 17,956,024.79/3,821.09
  6. Step 6: Final answer
    x = 4,699.20

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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.