Home / 2,147.11-2,961.26-1,816.63

Finding the Fourth Proportional to 2,147.11, 2,961.26 and 1,816.63

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Solution

The fourth proportional to 2,147.11, 2,961.26 and 1,816.63 is: 2,505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.11 : 2,961.26 = 1,816.63 : x
  2. Step 2: Convert to fraction form
    2,147.11/2,961.26 = 1,816.63/x
  3. Step 3: Cross multiply
    2,147.11x = 2,961.26 × 1,816.63
  4. Step 4: Simplify right side
    2,147.11x = 5,379,504.08
  5. Step 5: Solve for x
    x = 5,379,504.08/2,147.11
  6. Step 6: Final answer
    x = 2,505.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.