Home / 1,791.09-2,687.40-926.01

Finding the Fourth Proportional to 1,791.09, 2,687.40 and 926.01

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Solution

The fourth proportional to 1,791.09, 2,687.40 and 926.01 is: 1,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.09 : 2,687.40 = 926.01 : x
  2. Step 2: Convert to fraction form
    1,791.09/2,687.40 = 926.01/x
  3. Step 3: Cross multiply
    1,791.09x = 2,687.40 × 926.01
  4. Step 4: Simplify right side
    1,791.09x = 2,488,559.27
  5. Step 5: Solve for x
    x = 2,488,559.27/1,791.09
  6. Step 6: Final answer
    x = 1,389.41

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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.