Home / 3,462.11-5,190.64-1,381.49

Finding the Fourth Proportional to 3,462.11, 5,190.64 and 1,381.49

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Solution

The fourth proportional to 3,462.11, 5,190.64 and 1,381.49 is: 2,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.11 : 5,190.64 = 1,381.49 : x
  2. Step 2: Convert to fraction form
    3,462.11/5,190.64 = 1,381.49/x
  3. Step 3: Cross multiply
    3,462.11x = 5,190.64 × 1,381.49
  4. Step 4: Simplify right side
    3,462.11x = 7,170,817.25
  5. Step 5: Solve for x
    x = 7,170,817.25/3,462.11
  6. Step 6: Final answer
    x = 2,071.23

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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.