Home / 4,131.90-6,192.45-1,664.70

Finding the Fourth Proportional to 4,131.90, 6,192.45 and 1,664.70

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Solution

The fourth proportional to 4,131.90, 6,192.45 and 1,664.70 is: 2,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.90 : 6,192.45 = 1,664.70 : x
  2. Step 2: Convert to fraction form
    4,131.90/6,192.45 = 1,664.70/x
  3. Step 3: Cross multiply
    4,131.90x = 6,192.45 × 1,664.70
  4. Step 4: Simplify right side
    4,131.90x = 10,308,571.52
  5. Step 5: Solve for x
    x = 10,308,571.52/4,131.90
  6. Step 6: Final answer
    x = 2,494.87

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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.