Home / 2,229.08-3,342.60-1,188.81

Finding the Fourth Proportional to 2,229.08, 3,342.60 and 1,188.81

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Solution

The fourth proportional to 2,229.08, 3,342.60 and 1,188.81 is: 1,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.08 : 3,342.60 = 1,188.81 : x
  2. Step 2: Convert to fraction form
    2,229.08/3,342.60 = 1,188.81/x
  3. Step 3: Cross multiply
    2,229.08x = 3,342.60 × 1,188.81
  4. Step 4: Simplify right side
    2,229.08x = 3,973,716.31
  5. Step 5: Solve for x
    x = 3,973,716.31/2,229.08
  6. Step 6: Final answer
    x = 1,782.68

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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.