Home / 5,190.78-7,163.28-2,833.06

Finding the Fourth Proportional to 5,190.78, 7,163.28 and 2,833.06

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Solution

The fourth proportional to 5,190.78, 7,163.28 and 2,833.06 is: 3,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.78 : 7,163.28 = 2,833.06 : x
  2. Step 2: Convert to fraction form
    5,190.78/7,163.28 = 2,833.06/x
  3. Step 3: Cross multiply
    5,190.78x = 7,163.28 × 2,833.06
  4. Step 4: Simplify right side
    5,190.78x = 20,294,002.04
  5. Step 5: Solve for x
    x = 20,294,002.04/5,190.78
  6. Step 6: Final answer
    x = 3,909.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.