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Finding the Fourth Proportional to 2,606.53, 3,909.81 and 2,289.43

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Solution

The fourth proportional to 2,606.53, 3,909.81 and 2,289.43 is: 3,434.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,606.53 : 3,909.81 = 2,289.43 : x
  2. Step 2: Convert to fraction form
    2,606.53/3,909.81 = 2,289.43/x
  3. Step 3: Cross multiply
    2,606.53x = 3,909.81 × 2,289.43
  4. Step 4: Simplify right side
    2,606.53x = 8,951,236.31
  5. Step 5: Solve for x
    x = 8,951,236.31/2,606.53
  6. Step 6: Final answer
    x = 3,434.16

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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.