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Finding the Fourth Proportional to 3,720.98, 5,615.22 and 3,597.04

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Solution

The fourth proportional to 3,720.98, 5,615.22 and 3,597.04 is: 5,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.98 : 5,615.22 = 3,597.04 : x
  2. Step 2: Convert to fraction form
    3,720.98/5,615.22 = 3,597.04/x
  3. Step 3: Cross multiply
    3,720.98x = 5,615.22 × 3,597.04
  4. Step 4: Simplify right side
    3,720.98x = 20,198,170.95
  5. Step 5: Solve for x
    x = 20,198,170.95/3,720.98
  6. Step 6: Final answer
    x = 5,428.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.