Home / 1,037.13-1,556.40-791.09

Finding the Fourth Proportional to 1,037.13, 1,556.40 and 791.09

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Solution

The fourth proportional to 1,037.13, 1,556.40 and 791.09 is: 1,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.13 : 1,556.40 = 791.09 : x
  2. Step 2: Convert to fraction form
    1,037.13/1,556.40 = 791.09/x
  3. Step 3: Cross multiply
    1,037.13x = 1,556.40 × 791.09
  4. Step 4: Simplify right side
    1,037.13x = 1,231,252.48
  5. Step 5: Solve for x
    x = 1,231,252.48/1,037.13
  6. Step 6: Final answer
    x = 1,187.17

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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.