Home / 3,969.89-5,465.97-3,371.13

Finding the Fourth Proportional to 3,969.89, 5,465.97 and 3,371.13

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Solution

The fourth proportional to 3,969.89, 5,465.97 and 3,371.13 is: 4,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.89 : 5,465.97 = 3,371.13 : x
  2. Step 2: Convert to fraction form
    3,969.89/5,465.97 = 3,371.13/x
  3. Step 3: Cross multiply
    3,969.89x = 5,465.97 × 3,371.13
  4. Step 4: Simplify right side
    3,969.89x = 18,426,495.45
  5. Step 5: Solve for x
    x = 18,426,495.45/3,969.89
  6. Step 6: Final answer
    x = 4,641.56

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1.5x scale

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.