Home / 3,966-5,943.38-2,715.45

Finding the Fourth Proportional to 3,966, 5,943.38 and 2,715.45

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Solution

The fourth proportional to 3,966, 5,943.38 and 2,715.45 is: 4,069.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966 : 5,943.38 = 2,715.45 : x
  2. Step 2: Convert to fraction form
    3,966/5,943.38 = 2,715.45/x
  3. Step 3: Cross multiply
    3,966x = 5,943.38 × 2,715.45
  4. Step 4: Simplify right side
    3,966x = 16,138,937.64
  5. Step 5: Solve for x
    x = 16,138,937.64/3,966
  6. Step 6: Final answer
    x = 4,069.32

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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.