Home / 3,902.35-5,386.31-2,224.64

Finding the Fourth Proportional to 3,902.35, 5,386.31 and 2,224.64

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Solution

The fourth proportional to 3,902.35, 5,386.31 and 2,224.64 is: 3,070.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.35 : 5,386.31 = 2,224.64 : x
  2. Step 2: Convert to fraction form
    3,902.35/5,386.31 = 2,224.64/x
  3. Step 3: Cross multiply
    3,902.35x = 5,386.31 × 2,224.64
  4. Step 4: Simplify right side
    3,902.35x = 11,982,600.68
  5. Step 5: Solve for x
    x = 11,982,600.68/3,902.35
  6. Step 6: Final answer
    x = 3,070.61

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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.