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Finding the Fourth Proportional to 3,451, 4,762.38 and 1,879

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Solution

The fourth proportional to 3,451, 4,762.38 and 1,879 is: 2,593.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451 : 4,762.38 = 1,879 : x
  2. Step 2: Convert to fraction form
    3,451/4,762.38 = 1,879/x
  3. Step 3: Cross multiply
    3,451x = 4,762.38 × 1,879
  4. Step 4: Simplify right side
    3,451x = 8,948,512.02
  5. Step 5: Solve for x
    x = 8,948,512.02/3,451
  6. Step 6: Final answer
    x = 2,593.02

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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.