Home / 3,999.18-5,999.69-1,226.26

Finding the Fourth Proportional to 3,999.18, 5,999.69 and 1,226.26

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Solution

The fourth proportional to 3,999.18, 5,999.69 and 1,226.26 is: 1,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.18 : 5,999.69 = 1,226.26 : x
  2. Step 2: Convert to fraction form
    3,999.18/5,999.69 = 1,226.26/x
  3. Step 3: Cross multiply
    3,999.18x = 5,999.69 × 1,226.26
  4. Step 4: Simplify right side
    3,999.18x = 7,357,149.86
  5. Step 5: Solve for x
    x = 7,357,149.86/3,999.18
  6. Step 6: Final answer
    x = 1,839.66

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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.