Home / 7,783.22-11,674.78-3,620.92

Finding the Fourth Proportional to 7,783.22, 11,674.78 and 3,620.92

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Solution

The fourth proportional to 7,783.22, 11,674.78 and 3,620.92 is: 5,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.22 : 11,674.78 = 3,620.92 : x
  2. Step 2: Convert to fraction form
    7,783.22/11,674.78 = 3,620.92/x
  3. Step 3: Cross multiply
    7,783.22x = 11,674.78 × 3,620.92
  4. Step 4: Simplify right side
    7,783.22x = 42,273,444.40
  5. Step 5: Solve for x
    x = 42,273,444.40/7,783.22
  6. Step 6: Final answer
    x = 5,431.36

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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.