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Finding the Fourth Proportional to 5,166.58, 7,751.94 and 1,879.90

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Solution

The fourth proportional to 5,166.58, 7,751.94 and 1,879.90 is: 2,820.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.58 : 7,751.94 = 1,879.90 : x
  2. Step 2: Convert to fraction form
    5,166.58/7,751.94 = 1,879.90/x
  3. Step 3: Cross multiply
    5,166.58x = 7,751.94 × 1,879.90
  4. Step 4: Simplify right side
    5,166.58x = 14,572,872.01
  5. Step 5: Solve for x
    x = 14,572,872.01/5,166.58
  6. Step 6: Final answer
    x = 2,820.60

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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.