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Finding the Fourth Proportional to 3,236.48, 4,465.92 and 1,839.20

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Solution

The fourth proportional to 3,236.48, 4,465.92 and 1,839.20 is: 2,537.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.48 : 4,465.92 = 1,839.20 : x
  2. Step 2: Convert to fraction form
    3,236.48/4,465.92 = 1,839.20/x
  3. Step 3: Cross multiply
    3,236.48x = 4,465.92 × 1,839.20
  4. Step 4: Simplify right side
    3,236.48x = 8,213,720.06
  5. Step 5: Solve for x
    x = 8,213,720.06/3,236.48
  6. Step 6: Final answer
    x = 2,537.86

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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.