Home / 3,821.12-5,731.86-1,047.74

Finding the Fourth Proportional to 3,821.12, 5,731.86 and 1,047.74

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Solution

The fourth proportional to 3,821.12, 5,731.86 and 1,047.74 is: 1,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.12 : 5,731.86 = 1,047.74 : x
  2. Step 2: Convert to fraction form
    3,821.12/5,731.86 = 1,047.74/x
  3. Step 3: Cross multiply
    3,821.12x = 5,731.86 × 1,047.74
  4. Step 4: Simplify right side
    3,821.12x = 6,005,499.00
  5. Step 5: Solve for x
    x = 6,005,499.00/3,821.12
  6. Step 6: Final answer
    x = 1,571.66

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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.