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Finding the Fourth Proportional to 1,661.08, 2,491.62 and 565.44

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Solution

The fourth proportional to 1,661.08, 2,491.62 and 565.44 is: 848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661.08 : 2,491.62 = 565.44 : x
  2. Step 2: Convert to fraction form
    1,661.08/2,491.62 = 565.44/x
  3. Step 3: Cross multiply
    1,661.08x = 2,491.62 × 565.44
  4. Step 4: Simplify right side
    1,661.08x = 1,408,861.61
  5. Step 5: Solve for x
    x = 1,408,861.61/1,661.08
  6. Step 6: Final answer
    x = 848.16

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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.