Home / 7,845.92-11,768.16-2,651.84

Finding the Fourth Proportional to 7,845.92, 11,768.16 and 2,651.84

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Solution

The fourth proportional to 7,845.92, 11,768.16 and 2,651.84 is: 3,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.92 : 11,768.16 = 2,651.84 : x
  2. Step 2: Convert to fraction form
    7,845.92/11,768.16 = 2,651.84/x
  3. Step 3: Cross multiply
    7,845.92x = 11,768.16 × 2,651.84
  4. Step 4: Simplify right side
    7,845.92x = 31,207,277.41
  5. Step 5: Solve for x
    x = 31,207,277.41/7,845.92
  6. Step 6: Final answer
    x = 3,977.52

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1.5x scale

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.