Home / 3,680.83-5,521.25-2,140.75

Finding the Fourth Proportional to 3,680.83, 5,521.25 and 2,140.75

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Solution

The fourth proportional to 3,680.83, 5,521.25 and 2,140.75 is: 3,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.83 : 5,521.25 = 2,140.75 : x
  2. Step 2: Convert to fraction form
    3,680.83/5,521.25 = 2,140.75/x
  3. Step 3: Cross multiply
    3,680.83x = 5,521.25 × 2,140.75
  4. Step 4: Simplify right side
    3,680.83x = 11,819,615.94
  5. Step 5: Solve for x
    x = 11,819,615.94/3,680.83
  6. Step 6: Final answer
    x = 3,211.13

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.