Home / 3,411.12-5,116.79-945.97

Finding the Fourth Proportional to 3,411.12, 5,116.79 and 945.97

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Solution

The fourth proportional to 3,411.12, 5,116.79 and 945.97 is: 1,418.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.12 : 5,116.79 = 945.97 : x
  2. Step 2: Convert to fraction form
    3,411.12/5,116.79 = 945.97/x
  3. Step 3: Cross multiply
    3,411.12x = 5,116.79 × 945.97
  4. Step 4: Simplify right side
    3,411.12x = 4,840,329.84
  5. Step 5: Solve for x
    x = 4,840,329.84/3,411.12
  6. Step 6: Final answer
    x = 1,418.99

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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.