Home / 3,968.31-5,475.97-2,175.50

Finding the Fourth Proportional to 3,968.31, 5,475.97 and 2,175.50

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Solution

The fourth proportional to 3,968.31, 5,475.97 and 2,175.50 is: 3,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.31 : 5,475.97 = 2,175.50 : x
  2. Step 2: Convert to fraction form
    3,968.31/5,475.97 = 2,175.50/x
  3. Step 3: Cross multiply
    3,968.31x = 5,475.97 × 2,175.50
  4. Step 4: Simplify right side
    3,968.31x = 11,912,955.01
  5. Step 5: Solve for x
    x = 11,912,955.01/3,968.31
  6. Step 6: Final answer
    x = 3,002.03

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1.5x scale

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.