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Finding the Fourth Proportional to 2,502.22, 3,753.34 and 859.24

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Solution

The fourth proportional to 2,502.22, 3,753.34 and 859.24 is: 1,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,502.22 : 3,753.34 = 859.24 : x
  2. Step 2: Convert to fraction form
    2,502.22/3,753.34 = 859.24/x
  3. Step 3: Cross multiply
    2,502.22x = 3,753.34 × 859.24
  4. Step 4: Simplify right side
    2,502.22x = 3,225,019.86
  5. Step 5: Solve for x
    x = 3,225,019.86/2,502.22
  6. Step 6: Final answer
    x = 1,288.86

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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.