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Finding the Fourth Proportional to 3,519.96, 5,304.14 and 2,917.20

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Solution

The fourth proportional to 3,519.96, 5,304.14 and 2,917.20 is: 4,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.96 : 5,304.14 = 2,917.20 : x
  2. Step 2: Convert to fraction form
    3,519.96/5,304.14 = 2,917.20/x
  3. Step 3: Cross multiply
    3,519.96x = 5,304.14 × 2,917.20
  4. Step 4: Simplify right side
    3,519.96x = 15,473,222.62
  5. Step 5: Solve for x
    x = 15,473,222.62/3,519.96
  6. Step 6: Final answer
    x = 4,395.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.