Home / 3,571.46-4,928.77-1,999.55

Finding the Fourth Proportional to 3,571.46, 4,928.77 and 1,999.55

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Solution

The fourth proportional to 3,571.46, 4,928.77 and 1,999.55 is: 2,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.46 : 4,928.77 = 1,999.55 : x
  2. Step 2: Convert to fraction form
    3,571.46/4,928.77 = 1,999.55/x
  3. Step 3: Cross multiply
    3,571.46x = 4,928.77 × 1,999.55
  4. Step 4: Simplify right side
    3,571.46x = 9,855,342.50
  5. Step 5: Solve for x
    x = 9,855,342.50/3,571.46
  6. Step 6: Final answer
    x = 2,759.47

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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.