Home / 2,372.16-3,558.54-812.46

Finding the Fourth Proportional to 2,372.16, 3,558.54 and 812.46

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Solution

The fourth proportional to 2,372.16, 3,558.54 and 812.46 is: 1,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.16 : 3,558.54 = 812.46 : x
  2. Step 2: Convert to fraction form
    2,372.16/3,558.54 = 812.46/x
  3. Step 3: Cross multiply
    2,372.16x = 3,558.54 × 812.46
  4. Step 4: Simplify right side
    2,372.16x = 2,891,171.41
  5. Step 5: Solve for x
    x = 2,891,171.41/2,372.16
  6. Step 6: Final answer
    x = 1,218.79

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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.