Home / 3,221.36-4,445.38-2,276.16

Finding the Fourth Proportional to 3,221.36, 4,445.38 and 2,276.16

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Solution

The fourth proportional to 3,221.36, 4,445.38 and 2,276.16 is: 3,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.36 : 4,445.38 = 2,276.16 : x
  2. Step 2: Convert to fraction form
    3,221.36/4,445.38 = 2,276.16/x
  3. Step 3: Cross multiply
    3,221.36x = 4,445.38 × 2,276.16
  4. Step 4: Simplify right side
    3,221.36x = 10,118,396.14
  5. Step 5: Solve for x
    x = 10,118,396.14/3,221.36
  6. Step 6: Final answer
    x = 3,141.03

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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.