Home / 3,983.84-5,969.28-3,157.64

Finding the Fourth Proportional to 3,983.84, 5,969.28 and 3,157.64

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Solution

The fourth proportional to 3,983.84, 5,969.28 and 3,157.64 is: 4,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.84 : 5,969.28 = 3,157.64 : x
  2. Step 2: Convert to fraction form
    3,983.84/5,969.28 = 3,157.64/x
  3. Step 3: Cross multiply
    3,983.84x = 5,969.28 × 3,157.64
  4. Step 4: Simplify right side
    3,983.84x = 18,848,837.30
  5. Step 5: Solve for x
    x = 18,848,837.30/3,983.84
  6. Step 6: Final answer
    x = 4,731.32

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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.