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Finding the Fourth Proportional to 5,610.67, 7,741.37 and 3,620.80

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Solution

The fourth proportional to 5,610.67, 7,741.37 and 3,620.80 is: 4,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.67 : 7,741.37 = 3,620.80 : x
  2. Step 2: Convert to fraction form
    5,610.67/7,741.37 = 3,620.80/x
  3. Step 3: Cross multiply
    5,610.67x = 7,741.37 × 3,620.80
  4. Step 4: Simplify right side
    5,610.67x = 28,029,971.22
  5. Step 5: Solve for x
    x = 28,029,971.22/5,610.67
  6. Step 6: Final answer
    x = 4,995.84

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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.