Home / 5,160.45-7,121.18-2,922.27

Finding the Fourth Proportional to 5,160.45, 7,121.18 and 2,922.27

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Solution

The fourth proportional to 5,160.45, 7,121.18 and 2,922.27 is: 4,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.45 : 7,121.18 = 2,922.27 : x
  2. Step 2: Convert to fraction form
    5,160.45/7,121.18 = 2,922.27/x
  3. Step 3: Cross multiply
    5,160.45x = 7,121.18 × 2,922.27
  4. Step 4: Simplify right side
    5,160.45x = 20,810,014.00
  5. Step 5: Solve for x
    x = 20,810,014.00/5,160.45
  6. Step 6: Final answer
    x = 4,032.60

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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.