Home / 2,921.22-4,399.01-2,105.24

Finding the Fourth Proportional to 2,921.22, 4,399.01 and 2,105.24

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Solution

The fourth proportional to 2,921.22, 4,399.01 and 2,105.24 is: 3,170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.22 : 4,399.01 = 2,105.24 : x
  2. Step 2: Convert to fraction form
    2,921.22/4,399.01 = 2,105.24/x
  3. Step 3: Cross multiply
    2,921.22x = 4,399.01 × 2,105.24
  4. Step 4: Simplify right side
    2,921.22x = 9,260,955.08
  5. Step 5: Solve for x
    x = 9,260,955.08/2,921.22
  6. Step 6: Final answer
    x = 3,170.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.