Home / 3,188.86-4,782.40-2,261.68

Finding the Fourth Proportional to 3,188.86, 4,782.40 and 2,261.68

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Solution

The fourth proportional to 3,188.86, 4,782.40 and 2,261.68 is: 3,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.86 : 4,782.40 = 2,261.68 : x
  2. Step 2: Convert to fraction form
    3,188.86/4,782.40 = 2,261.68/x
  3. Step 3: Cross multiply
    3,188.86x = 4,782.40 × 2,261.68
  4. Step 4: Simplify right side
    3,188.86x = 10,816,258.43
  5. Step 5: Solve for x
    x = 10,816,258.43/3,188.86
  6. Step 6: Final answer
    x = 3,391.89

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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.