Home / 4,192.08-5,785.20-3,142.32

Finding the Fourth Proportional to 4,192.08, 5,785.20 and 3,142.32

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Solution

The fourth proportional to 4,192.08, 5,785.20 and 3,142.32 is: 4,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.08 : 5,785.20 = 3,142.32 : x
  2. Step 2: Convert to fraction form
    4,192.08/5,785.20 = 3,142.32/x
  3. Step 3: Cross multiply
    4,192.08x = 5,785.20 × 3,142.32
  4. Step 4: Simplify right side
    4,192.08x = 18,178,949.66
  5. Step 5: Solve for x
    x = 18,178,949.66/4,192.08
  6. Step 6: Final answer
    x = 4,336.50

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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.