Home / 2,451.12-3,378.96-1,518

Finding the Fourth Proportional to 2,451.12, 3,378.96 and 1,518

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Solution

The fourth proportional to 2,451.12, 3,378.96 and 1,518 is: 2,092.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.12 : 3,378.96 = 1,518 : x
  2. Step 2: Convert to fraction form
    2,451.12/3,378.96 = 1,518/x
  3. Step 3: Cross multiply
    2,451.12x = 3,378.96 × 1,518
  4. Step 4: Simplify right side
    2,451.12x = 5,129,261.28
  5. Step 5: Solve for x
    x = 5,129,261.28/2,451.12
  6. Step 6: Final answer
    x = 2,092.62

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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.