Home / 3,351.66-4,627.38-2,157.18

Finding the Fourth Proportional to 3,351.66, 4,627.38 and 2,157.18

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Solution

The fourth proportional to 3,351.66, 4,627.38 and 2,157.18 is: 2,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.66 : 4,627.38 = 2,157.18 : x
  2. Step 2: Convert to fraction form
    3,351.66/4,627.38 = 2,157.18/x
  3. Step 3: Cross multiply
    3,351.66x = 4,627.38 × 2,157.18
  4. Step 4: Simplify right side
    3,351.66x = 9,982,091.59
  5. Step 5: Solve for x
    x = 9,982,091.59/3,351.66
  6. Step 6: Final answer
    x = 2,978.25

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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.