Home / 5,422.67-8,120.99-2,783.22

Finding the Fourth Proportional to 5,422.67, 8,120.99 and 2,783.22

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Solution

The fourth proportional to 5,422.67, 8,120.99 and 2,783.22 is: 4,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.67 : 8,120.99 = 2,783.22 : x
  2. Step 2: Convert to fraction form
    5,422.67/8,120.99 = 2,783.22/x
  3. Step 3: Cross multiply
    5,422.67x = 8,120.99 × 2,783.22
  4. Step 4: Simplify right side
    5,422.67x = 22,602,487.87
  5. Step 5: Solve for x
    x = 22,602,487.87/5,422.67
  6. Step 6: Final answer
    x = 4,168.15

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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.