Home / 6,721.80-10,074.60-3,433.20

Finding the Fourth Proportional to 6,721.80, 10,074.60 and 3,433.20

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Solution

The fourth proportional to 6,721.80, 10,074.60 and 3,433.20 is: 5,145.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.80 : 10,074.60 = 3,433.20 : x
  2. Step 2: Convert to fraction form
    6,721.80/10,074.60 = 3,433.20/x
  3. Step 3: Cross multiply
    6,721.80x = 10,074.60 × 3,433.20
  4. Step 4: Simplify right side
    6,721.80x = 34,588,116.72
  5. Step 5: Solve for x
    x = 34,588,116.72/6,721.80
  6. Step 6: Final answer
    x = 5,145.66

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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.