Home / 3,902.39-5,385.45-2,224.06

Finding the Fourth Proportional to 3,902.39, 5,385.45 and 2,224.06

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Solution

The fourth proportional to 3,902.39, 5,385.45 and 2,224.06 is: 3,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.39 : 5,385.45 = 2,224.06 : x
  2. Step 2: Convert to fraction form
    3,902.39/5,385.45 = 2,224.06/x
  3. Step 3: Cross multiply
    3,902.39x = 5,385.45 × 2,224.06
  4. Step 4: Simplify right side
    3,902.39x = 11,977,550.46
  5. Step 5: Solve for x
    x = 11,977,550.46/3,902.39
  6. Step 6: Final answer
    x = 3,069.28

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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.