Home / 3,461.11-5,189.15-1,380.49

Finding the Fourth Proportional to 3,461.11, 5,189.15 and 1,380.49

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Solution

The fourth proportional to 3,461.11, 5,189.15 and 1,380.49 is: 2,069.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.11 : 5,189.15 = 1,380.49 : x
  2. Step 2: Convert to fraction form
    3,461.11/5,189.15 = 1,380.49/x
  3. Step 3: Cross multiply
    3,461.11x = 5,189.15 × 1,380.49
  4. Step 4: Simplify right side
    3,461.11x = 7,163,549.81
  5. Step 5: Solve for x
    x = 7,163,549.81/3,461.11
  6. Step 6: Final answer
    x = 2,069.73

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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.