Home / 3,938.47-5,908.26-1,165.36

Finding the Fourth Proportional to 3,938.47, 5,908.26 and 1,165.36

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Solution

The fourth proportional to 3,938.47, 5,908.26 and 1,165.36 is: 1,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.47 : 5,908.26 = 1,165.36 : x
  2. Step 2: Convert to fraction form
    3,938.47/5,908.26 = 1,165.36/x
  3. Step 3: Cross multiply
    3,938.47x = 5,908.26 × 1,165.36
  4. Step 4: Simplify right side
    3,938.47x = 6,885,249.87
  5. Step 5: Solve for x
    x = 6,885,249.87/3,938.47
  6. Step 6: Final answer
    x = 1,748.20

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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.