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Finding the Fourth Proportional to 5,739.82, 8,615.12 and 2,820.22

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Solution

The fourth proportional to 5,739.82, 8,615.12 and 2,820.22 is: 4,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.82 : 8,615.12 = 2,820.22 : x
  2. Step 2: Convert to fraction form
    5,739.82/8,615.12 = 2,820.22/x
  3. Step 3: Cross multiply
    5,739.82x = 8,615.12 × 2,820.22
  4. Step 4: Simplify right side
    5,739.82x = 24,296,533.73
  5. Step 5: Solve for x
    x = 24,296,533.73/5,739.82
  6. Step 6: Final answer
    x = 4,232.98

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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.