Home / 6,721.80-10,071.78-4,119.24

Finding the Fourth Proportional to 6,721.80, 10,071.78 and 4,119.24

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Solution

The fourth proportional to 6,721.80, 10,071.78 and 4,119.24 is: 6,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.80 : 10,071.78 = 4,119.24 : x
  2. Step 2: Convert to fraction form
    6,721.80/10,071.78 = 4,119.24/x
  3. Step 3: Cross multiply
    6,721.80x = 10,071.78 × 4,119.24
  4. Step 4: Simplify right side
    6,721.80x = 41,488,079.05
  5. Step 5: Solve for x
    x = 41,488,079.05/6,721.80
  6. Step 6: Final answer
    x = 6,172.17

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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.