Home / 2,372.09-3,558.14-812.12

Finding the Fourth Proportional to 2,372.09, 3,558.14 and 812.12

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Solution

The fourth proportional to 2,372.09, 3,558.14 and 812.12 is: 1,218.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.09 : 3,558.14 = 812.12 : x
  2. Step 2: Convert to fraction form
    2,372.09/3,558.14 = 812.12/x
  3. Step 3: Cross multiply
    2,372.09x = 3,558.14 × 812.12
  4. Step 4: Simplify right side
    2,372.09x = 2,889,614.81
  5. Step 5: Solve for x
    x = 2,889,614.81/2,372.09
  6. Step 6: Final answer
    x = 1,218.17

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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.