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Finding the Fourth Proportional to 5,652.50, 7,800.69 and 3,168.50

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Solution

The fourth proportional to 5,652.50, 7,800.69 and 3,168.50 is: 4,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,652.50 : 7,800.69 = 3,168.50 : x
  2. Step 2: Convert to fraction form
    5,652.50/7,800.69 = 3,168.50/x
  3. Step 3: Cross multiply
    5,652.50x = 7,800.69 × 3,168.50
  4. Step 4: Simplify right side
    5,652.50x = 24,716,486.27
  5. Step 5: Solve for x
    x = 24,716,486.27/5,652.50
  6. Step 6: Final answer
    x = 4,372.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.