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Finding the Fourth Proportional to 5,666.78, 8,503.50 and 2,379.62

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Solution

The fourth proportional to 5,666.78, 8,503.50 and 2,379.62 is: 3,570.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.78 : 8,503.50 = 2,379.62 : x
  2. Step 2: Convert to fraction form
    5,666.78/8,503.50 = 2,379.62/x
  3. Step 3: Cross multiply
    5,666.78x = 8,503.50 × 2,379.62
  4. Step 4: Simplify right side
    5,666.78x = 20,235,056.15
  5. Step 5: Solve for x
    x = 20,235,056.15/5,666.78
  6. Step 6: Final answer
    x = 3,570.82

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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.