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Finding the Fourth Proportional to 7,325.40, 10,109.09 and 3,968.22

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Solution

The fourth proportional to 7,325.40, 10,109.09 and 3,968.22 is: 5,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.40 : 10,109.09 = 3,968.22 : x
  2. Step 2: Convert to fraction form
    7,325.40/10,109.09 = 3,968.22/x
  3. Step 3: Cross multiply
    7,325.40x = 10,109.09 × 3,968.22
  4. Step 4: Simplify right side
    7,325.40x = 40,115,073.28
  5. Step 5: Solve for x
    x = 40,115,073.28/7,325.40
  6. Step 6: Final answer
    x = 5,476.16

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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.