Home / 3,821.30-5,731.76-1,047.77

Finding the Fourth Proportional to 3,821.30, 5,731.76 and 1,047.77

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Solution

The fourth proportional to 3,821.30, 5,731.76 and 1,047.77 is: 1,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.30 : 5,731.76 = 1,047.77 : x
  2. Step 2: Convert to fraction form
    3,821.30/5,731.76 = 1,047.77/x
  3. Step 3: Cross multiply
    3,821.30x = 5,731.76 × 1,047.77
  4. Step 4: Simplify right side
    3,821.30x = 6,005,560.94
  5. Step 5: Solve for x
    x = 6,005,560.94/3,821.30
  6. Step 6: Final answer
    x = 1,571.60

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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.