Home / 4,381.90-6,571.33-3,145.64

Finding the Fourth Proportional to 4,381.90, 6,571.33 and 3,145.64

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Solution

The fourth proportional to 4,381.90, 6,571.33 and 3,145.64 is: 4,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,381.90 : 6,571.33 = 3,145.64 : x
  2. Step 2: Convert to fraction form
    4,381.90/6,571.33 = 3,145.64/x
  3. Step 3: Cross multiply
    4,381.90x = 6,571.33 × 3,145.64
  4. Step 4: Simplify right side
    4,381.90x = 20,670,997.78
  5. Step 5: Solve for x
    x = 20,670,997.78/4,381.90
  6. Step 6: Final answer
    x = 4,717.36

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1.5x scale

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.