Home / 2,651.40-3,976.32-1,263.96

Finding the Fourth Proportional to 2,651.40, 3,976.32 and 1,263.96

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Solution

The fourth proportional to 2,651.40, 3,976.32 and 1,263.96 is: 1,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.40 : 3,976.32 = 1,263.96 : x
  2. Step 2: Convert to fraction form
    2,651.40/3,976.32 = 1,263.96/x
  3. Step 3: Cross multiply
    2,651.40x = 3,976.32 × 1,263.96
  4. Step 4: Simplify right side
    2,651.40x = 5,025,909.43
  5. Step 5: Solve for x
    x = 5,025,909.43/2,651.40
  6. Step 6: Final answer
    x = 1,895.57

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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.