Home / 4,472.22-6,708.36-1,185.78

Finding the Fourth Proportional to 4,472.22, 6,708.36 and 1,185.78

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Solution

The fourth proportional to 4,472.22, 6,708.36 and 1,185.78 is: 1,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,472.22 : 6,708.36 = 1,185.78 : x
  2. Step 2: Convert to fraction form
    4,472.22/6,708.36 = 1,185.78/x
  3. Step 3: Cross multiply
    4,472.22x = 6,708.36 × 1,185.78
  4. Step 4: Simplify right side
    4,472.22x = 7,954,639.12
  5. Step 5: Solve for x
    x = 7,954,639.12/4,472.22
  6. Step 6: Final answer
    x = 1,778.68

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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.