Home / 1,238.03-1,858.97-1,066.61

Finding the Fourth Proportional to 1,238.03, 1,858.97 and 1,066.61

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Solution

The fourth proportional to 1,238.03, 1,858.97 and 1,066.61 is: 1,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238.03 : 1,858.97 = 1,066.61 : x
  2. Step 2: Convert to fraction form
    1,238.03/1,858.97 = 1,066.61/x
  3. Step 3: Cross multiply
    1,238.03x = 1,858.97 × 1,066.61
  4. Step 4: Simplify right side
    1,238.03x = 1,982,795.31
  5. Step 5: Solve for x
    x = 1,982,795.31/1,238.03
  6. Step 6: Final answer
    x = 1,601.58

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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.