Home / 5,231.18-7,218.80-2,873.16

Finding the Fourth Proportional to 5,231.18, 7,218.80 and 2,873.16

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Solution

The fourth proportional to 5,231.18, 7,218.80 and 2,873.16 is: 3,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.18 : 7,218.80 = 2,873.16 : x
  2. Step 2: Convert to fraction form
    5,231.18/7,218.80 = 2,873.16/x
  3. Step 3: Cross multiply
    5,231.18x = 7,218.80 × 2,873.16
  4. Step 4: Simplify right side
    5,231.18x = 20,740,767.41
  5. Step 5: Solve for x
    x = 20,740,767.41/5,231.18
  6. Step 6: Final answer
    x = 3,964.84

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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.