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Finding the Fourth Proportional to 5,745.75, 8,611.65 and 2,621.47

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Solution

The fourth proportional to 5,745.75, 8,611.65 and 2,621.47 is: 3,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.75 : 8,611.65 = 2,621.47 : x
  2. Step 2: Convert to fraction form
    5,745.75/8,611.65 = 2,621.47/x
  3. Step 3: Cross multiply
    5,745.75x = 8,611.65 × 2,621.47
  4. Step 4: Simplify right side
    5,745.75x = 22,575,182.13
  5. Step 5: Solve for x
    x = 22,575,182.13/5,745.75
  6. Step 6: Final answer
    x = 3,929.03

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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.