Home / 3,459.20-5,190.69-1,611.19

Finding the Fourth Proportional to 3,459.20, 5,190.69 and 1,611.19

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Solution

The fourth proportional to 3,459.20, 5,190.69 and 1,611.19 is: 2,417.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.20 : 5,190.69 = 1,611.19 : x
  2. Step 2: Convert to fraction form
    3,459.20/5,190.69 = 1,611.19/x
  3. Step 3: Cross multiply
    3,459.20x = 5,190.69 × 1,611.19
  4. Step 4: Simplify right side
    3,459.20x = 8,363,161.87
  5. Step 5: Solve for x
    x = 8,363,161.87/3,459.20
  6. Step 6: Final answer
    x = 2,417.66

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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.