Home / 7,918.57-11,873.88-2,651.77

Finding the Fourth Proportional to 7,918.57, 11,873.88 and 2,651.77

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Solution

The fourth proportional to 7,918.57, 11,873.88 and 2,651.77 is: 3,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.57 : 11,873.88 = 2,651.77 : x
  2. Step 2: Convert to fraction form
    7,918.57/11,873.88 = 2,651.77/x
  3. Step 3: Cross multiply
    7,918.57x = 11,873.88 × 2,651.77
  4. Step 4: Simplify right side
    7,918.57x = 31,486,798.77
  5. Step 5: Solve for x
    x = 31,486,798.77/7,918.57
  6. Step 6: Final answer
    x = 3,976.32

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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.