Home / 4,083.75-5,635.58-2,220.75

Finding the Fourth Proportional to 4,083.75, 5,635.58 and 2,220.75

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Solution

The fourth proportional to 4,083.75, 5,635.58 and 2,220.75 is: 3,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,083.75 : 5,635.58 = 2,220.75 : x
  2. Step 2: Convert to fraction form
    4,083.75/5,635.58 = 2,220.75/x
  3. Step 3: Cross multiply
    4,083.75x = 5,635.58 × 2,220.75
  4. Step 4: Simplify right side
    4,083.75x = 12,515,203.18
  5. Step 5: Solve for x
    x = 12,515,203.18/4,083.75
  6. Step 6: Final answer
    x = 3,064.64

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Half scale
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Double scale
Find fourth proportional to 4,084.75, 5,636.96 and 2,221.75
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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.