Home / 1,731.13-2,389.94-1,143.37

Finding the Fourth Proportional to 1,731.13, 2,389.94 and 1,143.37

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Solution

The fourth proportional to 1,731.13, 2,389.94 and 1,143.37 is: 1,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.13 : 2,389.94 = 1,143.37 : x
  2. Step 2: Convert to fraction form
    1,731.13/2,389.94 = 1,143.37/x
  3. Step 3: Cross multiply
    1,731.13x = 2,389.94 × 1,143.37
  4. Step 4: Simplify right side
    1,731.13x = 2,732,568.03
  5. Step 5: Solve for x
    x = 2,732,568.03/1,731.13
  6. Step 6: Final answer
    x = 1,578.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.