Home / 5,127.44-7,076.88-3,003.20

Finding the Fourth Proportional to 5,127.44, 7,076.88 and 3,003.20

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Solution

The fourth proportional to 5,127.44, 7,076.88 and 3,003.20 is: 4,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.44 : 7,076.88 = 3,003.20 : x
  2. Step 2: Convert to fraction form
    5,127.44/7,076.88 = 3,003.20/x
  3. Step 3: Cross multiply
    5,127.44x = 7,076.88 × 3,003.20
  4. Step 4: Simplify right side
    5,127.44x = 21,253,286.02
  5. Step 5: Solve for x
    x = 21,253,286.02/5,127.44
  6. Step 6: Final answer
    x = 4,145.01

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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.