Home / 3,381.39-5,072.81-1,433.55

Finding the Fourth Proportional to 3,381.39, 5,072.81 and 1,433.55

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Solution

The fourth proportional to 3,381.39, 5,072.81 and 1,433.55 is: 2,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.39 : 5,072.81 = 1,433.55 : x
  2. Step 2: Convert to fraction form
    3,381.39/5,072.81 = 1,433.55/x
  3. Step 3: Cross multiply
    3,381.39x = 5,072.81 × 1,433.55
  4. Step 4: Simplify right side
    3,381.39x = 7,272,119.61
  5. Step 5: Solve for x
    x = 7,272,119.61/3,381.39
  6. Step 6: Final answer
    x = 2,150.63

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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.