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Finding the Fourth Proportional to 7,325.46, 10,109.10 and 3,968.31

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Solution

The fourth proportional to 7,325.46, 10,109.10 and 3,968.31 is: 5,476.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.46 : 10,109.10 = 3,968.31 : x
  2. Step 2: Convert to fraction form
    7,325.46/10,109.10 = 3,968.31/x
  3. Step 3: Cross multiply
    7,325.46x = 10,109.10 × 3,968.31
  4. Step 4: Simplify right side
    7,325.46x = 40,116,042.62
  5. Step 5: Solve for x
    x = 40,116,042.62/7,325.46
  6. Step 6: Final answer
    x = 5,476.25

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1.5x scale

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.