Home / 5,812.88-8,021.72-3,160.36

Finding the Fourth Proportional to 5,812.88, 8,021.72 and 3,160.36

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Solution

The fourth proportional to 5,812.88, 8,021.72 and 3,160.36 is: 4,361.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.88 : 8,021.72 = 3,160.36 : x
  2. Step 2: Convert to fraction form
    5,812.88/8,021.72 = 3,160.36/x
  3. Step 3: Cross multiply
    5,812.88x = 8,021.72 × 3,160.36
  4. Step 4: Simplify right side
    5,812.88x = 25,351,523.02
  5. Step 5: Solve for x
    x = 25,351,523.02/5,812.88
  6. Step 6: Final answer
    x = 4,361.27

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1.5x scale

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.