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Finding the Fourth Proportional to 3,361.13, 5,009.13 and 3,186.17

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Solution

The fourth proportional to 3,361.13, 5,009.13 and 3,186.17 is: 4,748.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.13 : 5,009.13 = 3,186.17 : x
  2. Step 2: Convert to fraction form
    3,361.13/5,009.13 = 3,186.17/x
  3. Step 3: Cross multiply
    3,361.13x = 5,009.13 × 3,186.17
  4. Step 4: Simplify right side
    3,361.13x = 15,959,914.69
  5. Step 5: Solve for x
    x = 15,959,914.69/3,361.13
  6. Step 6: Final answer
    x = 4,748.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.