Home / 3,966.87-5,476.10-2,975.43

Finding the Fourth Proportional to 3,966.87, 5,476.10 and 2,975.43

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Solution

The fourth proportional to 3,966.87, 5,476.10 and 2,975.43 is: 4,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.87 : 5,476.10 = 2,975.43 : x
  2. Step 2: Convert to fraction form
    3,966.87/5,476.10 = 2,975.43/x
  3. Step 3: Cross multiply
    3,966.87x = 5,476.10 × 2,975.43
  4. Step 4: Simplify right side
    3,966.87x = 16,293,737.35
  5. Step 5: Solve for x
    x = 16,293,737.35/3,966.87
  6. Step 6: Final answer
    x = 4,107.45

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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.