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Finding the Fourth Proportional to 6,891.88, 10,339.44 and 3,604.72

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Solution

The fourth proportional to 6,891.88, 10,339.44 and 3,604.72 is: 5,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.88 : 10,339.44 = 3,604.72 : x
  2. Step 2: Convert to fraction form
    6,891.88/10,339.44 = 3,604.72/x
  3. Step 3: Cross multiply
    6,891.88x = 10,339.44 × 3,604.72
  4. Step 4: Simplify right side
    6,891.88x = 37,270,786.16
  5. Step 5: Solve for x
    x = 37,270,786.16/6,891.88
  6. Step 6: Final answer
    x = 5,407.93

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1.5x scale

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.