Home / 4,766.60-7,149.90-1,991.75

Finding the Fourth Proportional to 4,766.60, 7,149.90 and 1,991.75

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Solution

The fourth proportional to 4,766.60, 7,149.90 and 1,991.75 is: 2,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,766.60 : 7,149.90 = 1,991.75 : x
  2. Step 2: Convert to fraction form
    4,766.60/7,149.90 = 1,991.75/x
  3. Step 3: Cross multiply
    4,766.60x = 7,149.90 × 1,991.75
  4. Step 4: Simplify right side
    4,766.60x = 14,240,831.20
  5. Step 5: Solve for x
    x = 14,240,831.20/4,766.60
  6. Step 6: Final answer
    x = 2,987.63

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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.