Home / 5,103.29-7,039.87-3,211.30

Finding the Fourth Proportional to 5,103.29, 7,039.87 and 3,211.30

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Solution

The fourth proportional to 5,103.29, 7,039.87 and 3,211.30 is: 4,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.29 : 7,039.87 = 3,211.30 : x
  2. Step 2: Convert to fraction form
    5,103.29/7,039.87 = 3,211.30/x
  3. Step 3: Cross multiply
    5,103.29x = 7,039.87 × 3,211.30
  4. Step 4: Simplify right side
    5,103.29x = 22,607,134.53
  5. Step 5: Solve for x
    x = 22,607,134.53/5,103.29
  6. Step 6: Final answer
    x = 4,429.91

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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.