Home / 2,651.26-3,977.46-1,007.80

Finding the Fourth Proportional to 2,651.26, 3,977.46 and 1,007.80

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Solution

The fourth proportional to 2,651.26, 3,977.46 and 1,007.80 is: 1,511.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.26 : 3,977.46 = 1,007.80 : x
  2. Step 2: Convert to fraction form
    2,651.26/3,977.46 = 1,007.80/x
  3. Step 3: Cross multiply
    2,651.26x = 3,977.46 × 1,007.80
  4. Step 4: Simplify right side
    2,651.26x = 4,008,484.19
  5. Step 5: Solve for x
    x = 4,008,484.19/2,651.26
  6. Step 6: Final answer
    x = 1,511.92

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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.