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Finding the Fourth Proportional to 2,305.08, 3,457.82 and 661.58

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Solution

The fourth proportional to 2,305.08, 3,457.82 and 661.58 is: 992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.08 : 3,457.82 = 661.58 : x
  2. Step 2: Convert to fraction form
    2,305.08/3,457.82 = 661.58/x
  3. Step 3: Cross multiply
    2,305.08x = 3,457.82 × 661.58
  4. Step 4: Simplify right side
    2,305.08x = 2,287,624.56
  5. Step 5: Solve for x
    x = 2,287,624.56/2,305.08
  6. Step 6: Final answer
    x = 992.43

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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.