Home / 1,991.24-2,967.09-1,773.14

Finding the Fourth Proportional to 1,991.24, 2,967.09 and 1,773.14

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Solution

The fourth proportional to 1,991.24, 2,967.09 and 1,773.14 is: 2,642.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991.24 : 2,967.09 = 1,773.14 : x
  2. Step 2: Convert to fraction form
    1,991.24/2,967.09 = 1,773.14/x
  3. Step 3: Cross multiply
    1,991.24x = 2,967.09 × 1,773.14
  4. Step 4: Simplify right side
    1,991.24x = 5,261,073.38
  5. Step 5: Solve for x
    x = 5,261,073.38/1,991.24
  6. Step 6: Final answer
    x = 2,642.12

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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.