Home / 3,188.50-4,400.18-1,929.33

Finding the Fourth Proportional to 3,188.50, 4,400.18 and 1,929.33

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Solution

The fourth proportional to 3,188.50, 4,400.18 and 1,929.33 is: 2,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.50 : 4,400.18 = 1,929.33 : x
  2. Step 2: Convert to fraction form
    3,188.50/4,400.18 = 1,929.33/x
  3. Step 3: Cross multiply
    3,188.50x = 4,400.18 × 1,929.33
  4. Step 4: Simplify right side
    3,188.50x = 8,489,399.28
  5. Step 5: Solve for x
    x = 8,489,399.28/3,188.50
  6. Step 6: Final answer
    x = 2,662.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.