Home / 3,571.48-4,928.79-1,999.59

Finding the Fourth Proportional to 3,571.48, 4,928.79 and 1,999.59

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Solution

The fourth proportional to 3,571.48, 4,928.79 and 1,999.59 is: 2,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.48 : 4,928.79 = 1,999.59 : x
  2. Step 2: Convert to fraction form
    3,571.48/4,928.79 = 1,999.59/x
  3. Step 3: Cross multiply
    3,571.48x = 4,928.79 × 1,999.59
  4. Step 4: Simplify right side
    3,571.48x = 9,855,559.20
  5. Step 5: Solve for x
    x = 9,855,559.20/3,571.48
  6. Step 6: Final answer
    x = 2,759.52

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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.