Home / 1,931.16-2,891.07-1,198.38

Finding the Fourth Proportional to 1,931.16, 2,891.07 and 1,198.38

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Solution

The fourth proportional to 1,931.16, 2,891.07 and 1,198.38 is: 1,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.16 : 2,891.07 = 1,198.38 : x
  2. Step 2: Convert to fraction form
    1,931.16/2,891.07 = 1,198.38/x
  3. Step 3: Cross multiply
    1,931.16x = 2,891.07 × 1,198.38
  4. Step 4: Simplify right side
    1,931.16x = 3,464,600.47
  5. Step 5: Solve for x
    x = 3,464,600.47/1,931.16
  6. Step 6: Final answer
    x = 1,794.05

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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.