Home / 3,840.63-5,760.68-2,192.01

Finding the Fourth Proportional to 3,840.63, 5,760.68 and 2,192.01

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Solution

The fourth proportional to 3,840.63, 5,760.68 and 2,192.01 is: 3,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.63 : 5,760.68 = 2,192.01 : x
  2. Step 2: Convert to fraction form
    3,840.63/5,760.68 = 2,192.01/x
  3. Step 3: Cross multiply
    3,840.63x = 5,760.68 × 2,192.01
  4. Step 4: Simplify right side
    3,840.63x = 12,627,457.21
  5. Step 5: Solve for x
    x = 12,627,457.21/3,840.63
  6. Step 6: Final answer
    x = 3,287.86

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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.