Home / 3,971.56-5,480.08-2,203.16

Finding the Fourth Proportional to 3,971.56, 5,480.08 and 2,203.16

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Solution

The fourth proportional to 3,971.56, 5,480.08 and 2,203.16 is: 3,039.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.56 : 5,480.08 = 2,203.16 : x
  2. Step 2: Convert to fraction form
    3,971.56/5,480.08 = 2,203.16/x
  3. Step 3: Cross multiply
    3,971.56x = 5,480.08 × 2,203.16
  4. Step 4: Simplify right side
    3,971.56x = 12,073,493.05
  5. Step 5: Solve for x
    x = 12,073,493.05/3,971.56
  6. Step 6: Final answer
    x = 3,039.99

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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.