Home / 3,390.15-5,085.99-1,199.05

Finding the Fourth Proportional to 3,390.15, 5,085.99 and 1,199.05

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Solution

The fourth proportional to 3,390.15, 5,085.99 and 1,199.05 is: 1,798.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.15 : 5,085.99 = 1,199.05 : x
  2. Step 2: Convert to fraction form
    3,390.15/5,085.99 = 1,199.05/x
  3. Step 3: Cross multiply
    3,390.15x = 5,085.99 × 1,199.05
  4. Step 4: Simplify right side
    3,390.15x = 6,098,372.20
  5. Step 5: Solve for x
    x = 6,098,372.20/3,390.15
  6. Step 6: Final answer
    x = 1,798.85

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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.