Home / 3,961.50-5,941.31-1,329.11

Finding the Fourth Proportional to 3,961.50, 5,941.31 and 1,329.11

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Solution

The fourth proportional to 3,961.50, 5,941.31 and 1,329.11 is: 1,993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.50 : 5,941.31 = 1,329.11 : x
  2. Step 2: Convert to fraction form
    3,961.50/5,941.31 = 1,329.11/x
  3. Step 3: Cross multiply
    3,961.50x = 5,941.31 × 1,329.11
  4. Step 4: Simplify right side
    3,961.50x = 7,896,618.18
  5. Step 5: Solve for x
    x = 7,896,618.18/3,961.50
  6. Step 6: Final answer
    x = 1,993.34

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1.5x scale

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.