Home / 3,785.86-5,679.06-1,188.73

Finding the Fourth Proportional to 3,785.86, 5,679.06 and 1,188.73

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Solution

The fourth proportional to 3,785.86, 5,679.06 and 1,188.73 is: 1,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.86 : 5,679.06 = 1,188.73 : x
  2. Step 2: Convert to fraction form
    3,785.86/5,679.06 = 1,188.73/x
  3. Step 3: Cross multiply
    3,785.86x = 5,679.06 × 1,188.73
  4. Step 4: Simplify right side
    3,785.86x = 6,750,868.99
  5. Step 5: Solve for x
    x = 6,750,868.99/3,785.86
  6. Step 6: Final answer
    x = 1,783.18

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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.