Home / 3,571.63-4,928.99-1,999.69

Finding the Fourth Proportional to 3,571.63, 4,928.99 and 1,999.69

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Solution

The fourth proportional to 3,571.63, 4,928.99 and 1,999.69 is: 2,759.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.63 : 4,928.99 = 1,999.69 : x
  2. Step 2: Convert to fraction form
    3,571.63/4,928.99 = 1,999.69/x
  3. Step 3: Cross multiply
    3,571.63x = 4,928.99 × 1,999.69
  4. Step 4: Simplify right side
    3,571.63x = 9,856,429.69
  5. Step 5: Solve for x
    x = 9,856,429.69/3,571.63
  6. Step 6: Final answer
    x = 2,759.65

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,572.63, 4,930.37 and 2,000.69
Similar ratio
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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.