Home / 5,160.41-7,122.65-2,923.61

Finding the Fourth Proportional to 5,160.41, 7,122.65 and 2,923.61

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Solution

The fourth proportional to 5,160.41, 7,122.65 and 2,923.61 is: 4,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.41 : 7,122.65 = 2,923.61 : x
  2. Step 2: Convert to fraction form
    5,160.41/7,122.65 = 2,923.61/x
  3. Step 3: Cross multiply
    5,160.41x = 7,122.65 × 2,923.61
  4. Step 4: Simplify right side
    5,160.41x = 20,823,800.54
  5. Step 5: Solve for x
    x = 20,823,800.54/5,160.41
  6. Step 6: Final answer
    x = 4,035.30

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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.