Home / 3,480.89-5,214.65-2,160.72

Finding the Fourth Proportional to 3,480.89, 5,214.65 and 2,160.72

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Solution

The fourth proportional to 3,480.89, 5,214.65 and 2,160.72 is: 3,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.89 : 5,214.65 = 2,160.72 : x
  2. Step 2: Convert to fraction form
    3,480.89/5,214.65 = 2,160.72/x
  3. Step 3: Cross multiply
    3,480.89x = 5,214.65 × 2,160.72
  4. Step 4: Simplify right side
    3,480.89x = 11,267,387.74
  5. Step 5: Solve for x
    x = 11,267,387.74/3,480.89
  6. Step 6: Final answer
    x = 3,236.93

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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.