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Finding the Fourth Proportional to 1,661.00, 2,491.43 and 565.34

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Solution

The fourth proportional to 1,661.00, 2,491.43 and 565.34 is: 847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661.00 : 2,491.43 = 565.34 : x
  2. Step 2: Convert to fraction form
    1,661.00/2,491.43 = 565.34/x
  3. Step 3: Cross multiply
    1,661.00x = 2,491.43 × 565.34
  4. Step 4: Simplify right side
    1,661.00x = 1,408,489.75
  5. Step 5: Solve for x
    x = 1,408,489.75/1,661.00
  6. Step 6: Final answer
    x = 847.98

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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.