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Finding the Fourth Proportional to 2,502.81, 3,753.34 and 859.56

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Solution

The fourth proportional to 2,502.81, 3,753.34 and 859.56 is: 1,289.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,502.81 : 3,753.34 = 859.56 : x
  2. Step 2: Convert to fraction form
    2,502.81/3,753.34 = 859.56/x
  3. Step 3: Cross multiply
    2,502.81x = 3,753.34 × 859.56
  4. Step 4: Simplify right side
    2,502.81x = 3,226,204.71
  5. Step 5: Solve for x
    x = 3,226,204.71/2,502.81
  6. Step 6: Final answer
    x = 1,289.03

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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.