Home / 2,382.04-3,571.70-1,147.78

Finding the Fourth Proportional to 2,382.04, 3,571.70 and 1,147.78

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Solution

The fourth proportional to 2,382.04, 3,571.70 and 1,147.78 is: 1,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.04 : 3,571.70 = 1,147.78 : x
  2. Step 2: Convert to fraction form
    2,382.04/3,571.70 = 1,147.78/x
  3. Step 3: Cross multiply
    2,382.04x = 3,571.70 × 1,147.78
  4. Step 4: Simplify right side
    2,382.04x = 4,099,525.83
  5. Step 5: Solve for x
    x = 4,099,525.83/2,382.04
  6. Step 6: Final answer
    x = 1,721.01

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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.