Home / 3,945.36-5,445.06-2,267.04

Finding the Fourth Proportional to 3,945.36, 5,445.06 and 2,267.04

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Solution

The fourth proportional to 3,945.36, 5,445.06 and 2,267.04 is: 3,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.36 : 5,445.06 = 2,267.04 : x
  2. Step 2: Convert to fraction form
    3,945.36/5,445.06 = 2,267.04/x
  3. Step 3: Cross multiply
    3,945.36x = 5,445.06 × 2,267.04
  4. Step 4: Simplify right side
    3,945.36x = 12,344,168.82
  5. Step 5: Solve for x
    x = 12,344,168.82/3,945.36
  6. Step 6: Final answer
    x = 3,128.78

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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.