Home / 3,047.72-4,201.54-2,163.20

Finding the Fourth Proportional to 3,047.72, 4,201.54 and 2,163.20

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Solution

The fourth proportional to 3,047.72, 4,201.54 and 2,163.20 is: 2,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.72 : 4,201.54 = 2,163.20 : x
  2. Step 2: Convert to fraction form
    3,047.72/4,201.54 = 2,163.20/x
  3. Step 3: Cross multiply
    3,047.72x = 4,201.54 × 2,163.20
  4. Step 4: Simplify right side
    3,047.72x = 9,088,744.91
  5. Step 5: Solve for x
    x = 9,088,744.91/3,047.72
  6. Step 6: Final answer
    x = 2,982.15

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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.