Home / 3,539.88-5,309.93-1,199.85

Finding the Fourth Proportional to 3,539.88, 5,309.93 and 1,199.85

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Solution

The fourth proportional to 3,539.88, 5,309.93 and 1,199.85 is: 1,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.88 : 5,309.93 = 1,199.85 : x
  2. Step 2: Convert to fraction form
    3,539.88/5,309.93 = 1,199.85/x
  3. Step 3: Cross multiply
    3,539.88x = 5,309.93 × 1,199.85
  4. Step 4: Simplify right side
    3,539.88x = 6,371,119.51
  5. Step 5: Solve for x
    x = 6,371,119.51/3,539.88
  6. Step 6: Final answer
    x = 1,799.81

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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.