Home / 1,239.08-1,849.78-1,195.83

Finding the Fourth Proportional to 1,239.08, 1,849.78 and 1,195.83

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Solution

The fourth proportional to 1,239.08, 1,849.78 and 1,195.83 is: 1,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.08 : 1,849.78 = 1,195.83 : x
  2. Step 2: Convert to fraction form
    1,239.08/1,849.78 = 1,195.83/x
  3. Step 3: Cross multiply
    1,239.08x = 1,849.78 × 1,195.83
  4. Step 4: Simplify right side
    1,239.08x = 2,212,007.19
  5. Step 5: Solve for x
    x = 2,212,007.19/1,239.08
  6. Step 6: Final answer
    x = 1,785.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.