Home / 1,234.21-1,859.65-1,101.58

Finding the Fourth Proportional to 1,234.21, 1,859.65 and 1,101.58

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Solution

The fourth proportional to 1,234.21, 1,859.65 and 1,101.58 is: 1,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.21 : 1,859.65 = 1,101.58 : x
  2. Step 2: Convert to fraction form
    1,234.21/1,859.65 = 1,101.58/x
  3. Step 3: Cross multiply
    1,234.21x = 1,859.65 × 1,101.58
  4. Step 4: Simplify right side
    1,234.21x = 2,048,553.25
  5. Step 5: Solve for x
    x = 2,048,553.25/1,234.21
  6. Step 6: Final answer
    x = 1,659.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.