Home / 3,923.70-5,875.83-2,188.68

Finding the Fourth Proportional to 3,923.70, 5,875.83 and 2,188.68

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Solution

The fourth proportional to 3,923.70, 5,875.83 and 2,188.68 is: 3,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.70 : 5,875.83 = 2,188.68 : x
  2. Step 2: Convert to fraction form
    3,923.70/5,875.83 = 2,188.68/x
  3. Step 3: Cross multiply
    3,923.70x = 5,875.83 × 2,188.68
  4. Step 4: Simplify right side
    3,923.70x = 12,860,311.60
  5. Step 5: Solve for x
    x = 12,860,311.60/3,923.70
  6. Step 6: Final answer
    x = 3,277.60

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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.