Home / 5,160.89-7,114.32-3,169.91

Finding the Fourth Proportional to 5,160.89, 7,114.32 and 3,169.91

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Solution

The fourth proportional to 5,160.89, 7,114.32 and 3,169.91 is: 4,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.89 : 7,114.32 = 3,169.91 : x
  2. Step 2: Convert to fraction form
    5,160.89/7,114.32 = 3,169.91/x
  3. Step 3: Cross multiply
    5,160.89x = 7,114.32 × 3,169.91
  4. Step 4: Simplify right side
    5,160.89x = 22,551,718.54
  5. Step 5: Solve for x
    x = 22,551,718.54/5,160.89
  6. Step 6: Final answer
    x = 4,369.74

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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.