Home / 2,651.12-3,975.66-1,263.39

Finding the Fourth Proportional to 2,651.12, 3,975.66 and 1,263.39

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Solution

The fourth proportional to 2,651.12, 3,975.66 and 1,263.39 is: 1,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.12 : 3,975.66 = 1,263.39 : x
  2. Step 2: Convert to fraction form
    2,651.12/3,975.66 = 1,263.39/x
  3. Step 3: Cross multiply
    2,651.12x = 3,975.66 × 1,263.39
  4. Step 4: Simplify right side
    2,651.12x = 5,022,809.09
  5. Step 5: Solve for x
    x = 5,022,809.09/2,651.12
  6. Step 6: Final answer
    x = 1,894.60

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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.