Home / 2,149.91-2,966.67-1,205.64

Finding the Fourth Proportional to 2,149.91, 2,966.67 and 1,205.64

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Solution

The fourth proportional to 2,149.91, 2,966.67 and 1,205.64 is: 1,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.91 : 2,966.67 = 1,205.64 : x
  2. Step 2: Convert to fraction form
    2,149.91/2,966.67 = 1,205.64/x
  3. Step 3: Cross multiply
    2,149.91x = 2,966.67 × 1,205.64
  4. Step 4: Simplify right side
    2,149.91x = 3,576,729.99
  5. Step 5: Solve for x
    x = 3,576,729.99/2,149.91
  6. Step 6: Final answer
    x = 1,663.66

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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.