Home / 2,792.45-4,189.37-1,972.33

Finding the Fourth Proportional to 2,792.45, 4,189.37 and 1,972.33

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Solution

The fourth proportional to 2,792.45, 4,189.37 and 1,972.33 is: 2,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.45 : 4,189.37 = 1,972.33 : x
  2. Step 2: Convert to fraction form
    2,792.45/4,189.37 = 1,972.33/x
  3. Step 3: Cross multiply
    2,792.45x = 4,189.37 × 1,972.33
  4. Step 4: Simplify right side
    2,792.45x = 8,262,799.80
  5. Step 5: Solve for x
    x = 8,262,799.80/2,792.45
  6. Step 6: Final answer
    x = 2,958.98

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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.