Home / 7,211.64-10,821.69-3,051.39

Finding the Fourth Proportional to 7,211.64, 10,821.69 and 3,051.39

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Solution

The fourth proportional to 7,211.64, 10,821.69 and 3,051.39 is: 4,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.64 : 10,821.69 = 3,051.39 : x
  2. Step 2: Convert to fraction form
    7,211.64/10,821.69 = 3,051.39/x
  3. Step 3: Cross multiply
    7,211.64x = 10,821.69 × 3,051.39
  4. Step 4: Simplify right side
    7,211.64x = 33,021,196.65
  5. Step 5: Solve for x
    x = 33,021,196.65/7,211.64
  6. Step 6: Final answer
    x = 4,578.87

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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.