Home / 3,821.18-5,731.78-1,047.89

Finding the Fourth Proportional to 3,821.18, 5,731.78 and 1,047.89

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Solution

The fourth proportional to 3,821.18, 5,731.78 and 1,047.89 is: 1,571.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.18 : 5,731.78 = 1,047.89 : x
  2. Step 2: Convert to fraction form
    3,821.18/5,731.78 = 1,047.89/x
  3. Step 3: Cross multiply
    3,821.18x = 5,731.78 × 1,047.89
  4. Step 4: Simplify right side
    3,821.18x = 6,006,288.62
  5. Step 5: Solve for x
    x = 6,006,288.62/3,821.18
  6. Step 6: Final answer
    x = 1,571.84

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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.