Home / 3,219.70-4,829.55-2,571.70

Finding the Fourth Proportional to 3,219.70, 4,829.55 and 2,571.70

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Solution

The fourth proportional to 3,219.70, 4,829.55 and 2,571.70 is: 3,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.70 : 4,829.55 = 2,571.70 : x
  2. Step 2: Convert to fraction form
    3,219.70/4,829.55 = 2,571.70/x
  3. Step 3: Cross multiply
    3,219.70x = 4,829.55 × 2,571.70
  4. Step 4: Simplify right side
    3,219.70x = 12,420,153.74
  5. Step 5: Solve for x
    x = 12,420,153.74/3,219.70
  6. Step 6: Final answer
    x = 3,857.55

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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.