Home / 2,651.68-3,976.92-1,007.64

Finding the Fourth Proportional to 2,651.68, 3,976.92 and 1,007.64

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Solution

The fourth proportional to 2,651.68, 3,976.92 and 1,007.64 is: 1,511.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.68 : 3,976.92 = 1,007.64 : x
  2. Step 2: Convert to fraction form
    2,651.68/3,976.92 = 1,007.64/x
  3. Step 3: Cross multiply
    2,651.68x = 3,976.92 × 1,007.64
  4. Step 4: Simplify right side
    2,651.68x = 4,007,303.67
  5. Step 5: Solve for x
    x = 4,007,303.67/2,651.68
  6. Step 6: Final answer
    x = 1,511.23

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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.