Home / 1,931.36-2,899.92-1,198.88

Finding the Fourth Proportional to 1,931.36, 2,899.92 and 1,198.88

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Solution

The fourth proportional to 1,931.36, 2,899.92 and 1,198.88 is: 1,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.36 : 2,899.92 = 1,198.88 : x
  2. Step 2: Convert to fraction form
    1,931.36/2,899.92 = 1,198.88/x
  3. Step 3: Cross multiply
    1,931.36x = 2,899.92 × 1,198.88
  4. Step 4: Simplify right side
    1,931.36x = 3,476,656.09
  5. Step 5: Solve for x
    x = 3,476,656.09/1,931.36
  6. Step 6: Final answer
    x = 1,800.11

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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.