Home / 4,991.74-7,489.38-2,218.16

Finding the Fourth Proportional to 4,991.74, 7,489.38 and 2,218.16

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Solution

The fourth proportional to 4,991.74, 7,489.38 and 2,218.16 is: 3,328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.74 : 7,489.38 = 2,218.16 : x
  2. Step 2: Convert to fraction form
    4,991.74/7,489.38 = 2,218.16/x
  3. Step 3: Cross multiply
    4,991.74x = 7,489.38 × 2,218.16
  4. Step 4: Simplify right side
    4,991.74x = 16,612,643.14
  5. Step 5: Solve for x
    x = 16,612,643.14/4,991.74
  6. Step 6: Final answer
    x = 3,328.03

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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.