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Finding the Fourth Proportional to 5,777, 8,665.50 and 1,673

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Solution

The fourth proportional to 5,777, 8,665.50 and 1,673 is: 2,509.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777 : 8,665.50 = 1,673 : x
  2. Step 2: Convert to fraction form
    5,777/8,665.50 = 1,673/x
  3. Step 3: Cross multiply
    5,777x = 8,665.50 × 1,673
  4. Step 4: Simplify right side
    5,777x = 14,497,381.50
  5. Step 5: Solve for x
    x = 14,497,381.50/5,777
  6. Step 6: Final answer
    x = 2,509.50

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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.