Home / 3,802.42-5,247.12-2,231.02

Finding the Fourth Proportional to 3,802.42, 5,247.12 and 2,231.02

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Solution

The fourth proportional to 3,802.42, 5,247.12 and 2,231.02 is: 3,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.42 : 5,247.12 = 2,231.02 : x
  2. Step 2: Convert to fraction form
    3,802.42/5,247.12 = 2,231.02/x
  3. Step 3: Cross multiply
    3,802.42x = 5,247.12 × 2,231.02
  4. Step 4: Simplify right side
    3,802.42x = 11,706,429.66
  5. Step 5: Solve for x
    x = 11,706,429.66/3,802.42
  6. Step 6: Final answer
    x = 3,078.68

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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.