Home / 3,938.09-5,909.49-3,534.71

Finding the Fourth Proportional to 3,938.09, 5,909.49 and 3,534.71

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Solution

The fourth proportional to 3,938.09, 5,909.49 and 3,534.71 is: 5,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.09 : 5,909.49 = 3,534.71 : x
  2. Step 2: Convert to fraction form
    3,938.09/5,909.49 = 3,534.71/x
  3. Step 3: Cross multiply
    3,938.09x = 5,909.49 × 3,534.71
  4. Step 4: Simplify right side
    3,938.09x = 20,888,303.85
  5. Step 5: Solve for x
    x = 20,888,303.85/3,938.09
  6. Step 6: Final answer
    x = 5,304.18

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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.