Home / 3,938.40-5,908.37-1,747.16

Finding the Fourth Proportional to 3,938.40, 5,908.37 and 1,747.16

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Solution

The fourth proportional to 3,938.40, 5,908.37 and 1,747.16 is: 2,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.40 : 5,908.37 = 1,747.16 : x
  2. Step 2: Convert to fraction form
    3,938.40/5,908.37 = 1,747.16/x
  3. Step 3: Cross multiply
    3,938.40x = 5,908.37 × 1,747.16
  4. Step 4: Simplify right side
    3,938.40x = 10,322,829.45
  5. Step 5: Solve for x
    x = 10,322,829.45/3,938.40
  6. Step 6: Final answer
    x = 2,621.07

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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.