Home / 1,939.88-2,677.29-1,154.36

Finding the Fourth Proportional to 1,939.88, 2,677.29 and 1,154.36

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Solution

The fourth proportional to 1,939.88, 2,677.29 and 1,154.36 is: 1,593.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.88 : 2,677.29 = 1,154.36 : x
  2. Step 2: Convert to fraction form
    1,939.88/2,677.29 = 1,154.36/x
  3. Step 3: Cross multiply
    1,939.88x = 2,677.29 × 1,154.36
  4. Step 4: Simplify right side
    1,939.88x = 3,090,556.48
  5. Step 5: Solve for x
    x = 3,090,556.48/1,939.88
  6. Step 6: Final answer
    x = 1,593.17

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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.