Home / 5,231.04-7,218.48-2,873.28

Finding the Fourth Proportional to 5,231.04, 7,218.48 and 2,873.28

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Solution

The fourth proportional to 5,231.04, 7,218.48 and 2,873.28 is: 3,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.04 : 7,218.48 = 2,873.28 : x
  2. Step 2: Convert to fraction form
    5,231.04/7,218.48 = 2,873.28/x
  3. Step 3: Cross multiply
    5,231.04x = 7,218.48 × 2,873.28
  4. Step 4: Simplify right side
    5,231.04x = 20,740,714.21
  5. Step 5: Solve for x
    x = 20,740,714.21/5,231.04
  6. Step 6: Final answer
    x = 3,964.93

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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.