Home / 3,201.13-4,416.55-2,153.80

Finding the Fourth Proportional to 3,201.13, 4,416.55 and 2,153.80

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Solution

The fourth proportional to 3,201.13, 4,416.55 and 2,153.80 is: 2,971.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.13 : 4,416.55 = 2,153.80 : x
  2. Step 2: Convert to fraction form
    3,201.13/4,416.55 = 2,153.80/x
  3. Step 3: Cross multiply
    3,201.13x = 4,416.55 × 2,153.80
  4. Step 4: Simplify right side
    3,201.13x = 9,512,365.39
  5. Step 5: Solve for x
    x = 9,512,365.39/3,201.13
  6. Step 6: Final answer
    x = 2,971.56

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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.