Home / 3,459.99-5,190.80-1,269.75

Finding the Fourth Proportional to 3,459.99, 5,190.80 and 1,269.75

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Solution

The fourth proportional to 3,459.99, 5,190.80 and 1,269.75 is: 1,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.99 : 5,190.80 = 1,269.75 : x
  2. Step 2: Convert to fraction form
    3,459.99/5,190.80 = 1,269.75/x
  3. Step 3: Cross multiply
    3,459.99x = 5,190.80 × 1,269.75
  4. Step 4: Simplify right side
    3,459.99x = 6,591,011.95
  5. Step 5: Solve for x
    x = 6,591,011.95/3,459.99
  6. Step 6: Final answer
    x = 1,904.92

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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.