Home / 3,966.49-5,433.40-3,922.75

Finding the Fourth Proportional to 3,966.49, 5,433.40 and 3,922.75

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Solution

The fourth proportional to 3,966.49, 5,433.40 and 3,922.75 is: 5,373.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.49 : 5,433.40 = 3,922.75 : x
  2. Step 2: Convert to fraction form
    3,966.49/5,433.40 = 3,922.75/x
  3. Step 3: Cross multiply
    3,966.49x = 5,433.40 × 3,922.75
  4. Step 4: Simplify right side
    3,966.49x = 21,313,869.85
  5. Step 5: Solve for x
    x = 21,313,869.85/3,966.49
  6. Step 6: Final answer
    x = 5,373.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.