Home / 3,571.43-4,928.51-1,999.58

Finding the Fourth Proportional to 3,571.43, 4,928.51 and 1,999.58

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Solution

The fourth proportional to 3,571.43, 4,928.51 and 1,999.58 is: 2,759.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.43 : 4,928.51 = 1,999.58 : x
  2. Step 2: Convert to fraction form
    3,571.43/4,928.51 = 1,999.58/x
  3. Step 3: Cross multiply
    3,571.43x = 4,928.51 × 1,999.58
  4. Step 4: Simplify right side
    3,571.43x = 9,854,930.38
  5. Step 5: Solve for x
    x = 9,854,930.38/3,571.43
  6. Step 6: Final answer
    x = 2,759.38

Related Problems

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Half scale
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Double scale
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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.