Home / 2,661.27-3,672.38-1,666.50

Finding the Fourth Proportional to 2,661.27, 3,672.38 and 1,666.50

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Solution

The fourth proportional to 2,661.27, 3,672.38 and 1,666.50 is: 2,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.27 : 3,672.38 = 1,666.50 : x
  2. Step 2: Convert to fraction form
    2,661.27/3,672.38 = 1,666.50/x
  3. Step 3: Cross multiply
    2,661.27x = 3,672.38 × 1,666.50
  4. Step 4: Simplify right side
    2,661.27x = 6,120,012.94
  5. Step 5: Solve for x
    x = 6,120,012.94/2,661.27
  6. Step 6: Final answer
    x = 2,299.66

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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.