Home / 3,192.64-4,790.16-1,112.80

Finding the Fourth Proportional to 3,192.64, 4,790.16 and 1,112.80

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Solution

The fourth proportional to 3,192.64, 4,790.16 and 1,112.80 is: 1,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.64 : 4,790.16 = 1,112.80 : x
  2. Step 2: Convert to fraction form
    3,192.64/4,790.16 = 1,112.80/x
  3. Step 3: Cross multiply
    3,192.64x = 4,790.16 × 1,112.80
  4. Step 4: Simplify right side
    3,192.64x = 5,330,490.05
  5. Step 5: Solve for x
    x = 5,330,490.05/3,192.64
  6. Step 6: Final answer
    x = 1,669.62

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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.