Home / 5,784.56-7,982.70-3,131.99

Finding the Fourth Proportional to 5,784.56, 7,982.70 and 3,131.99

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Solution

The fourth proportional to 5,784.56, 7,982.70 and 3,131.99 is: 4,322.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,784.56 : 7,982.70 = 3,131.99 : x
  2. Step 2: Convert to fraction form
    5,784.56/7,982.70 = 3,131.99/x
  3. Step 3: Cross multiply
    5,784.56x = 7,982.70 × 3,131.99
  4. Step 4: Simplify right side
    5,784.56x = 25,001,736.57
  5. Step 5: Solve for x
    x = 25,001,736.57/5,784.56
  6. Step 6: Final answer
    x = 4,322.15

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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.