Home / 4,004.85-5,521.32-2,808.22

Finding the Fourth Proportional to 4,004.85, 5,521.32 and 2,808.22

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Solution

The fourth proportional to 4,004.85, 5,521.32 and 2,808.22 is: 3,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,004.85 : 5,521.32 = 2,808.22 : x
  2. Step 2: Convert to fraction form
    4,004.85/5,521.32 = 2,808.22/x
  3. Step 3: Cross multiply
    4,004.85x = 5,521.32 × 2,808.22
  4. Step 4: Simplify right side
    4,004.85x = 15,505,081.25
  5. Step 5: Solve for x
    x = 15,505,081.25/4,004.85
  6. Step 6: Final answer
    x = 3,871.58

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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.