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Finding the Fourth Proportional to 1,720.72, 2,581.44 and 566.56

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Solution

The fourth proportional to 1,720.72, 2,581.44 and 566.56 is: 849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.72 : 2,581.44 = 566.56 : x
  2. Step 2: Convert to fraction form
    1,720.72/2,581.44 = 566.56/x
  3. Step 3: Cross multiply
    1,720.72x = 2,581.44 × 566.56
  4. Step 4: Simplify right side
    1,720.72x = 1,462,540.65
  5. Step 5: Solve for x
    x = 1,462,540.65/1,720.72
  6. Step 6: Final answer
    x = 849.96

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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.