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Finding the Fourth Proportional to 3,745.02, 5,615.51 and 1,147.62

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Solution

The fourth proportional to 3,745.02, 5,615.51 and 1,147.62 is: 1,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.02 : 5,615.51 = 1,147.62 : x
  2. Step 2: Convert to fraction form
    3,745.02/5,615.51 = 1,147.62/x
  3. Step 3: Cross multiply
    3,745.02x = 5,615.51 × 1,147.62
  4. Step 4: Simplify right side
    3,745.02x = 6,444,471.59
  5. Step 5: Solve for x
    x = 6,444,471.59/3,745.02
  6. Step 6: Final answer
    x = 1,720.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.