Home / 3,623.70-5,439.60-2,805.60

Finding the Fourth Proportional to 3,623.70, 5,439.60 and 2,805.60

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Solution

The fourth proportional to 3,623.70, 5,439.60 and 2,805.60 is: 4,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.70 : 5,439.60 = 2,805.60 : x
  2. Step 2: Convert to fraction form
    3,623.70/5,439.60 = 2,805.60/x
  3. Step 3: Cross multiply
    3,623.70x = 5,439.60 × 2,805.60
  4. Step 4: Simplify right side
    3,623.70x = 15,261,341.76
  5. Step 5: Solve for x
    x = 15,261,341.76/3,623.70
  6. Step 6: Final answer
    x = 4,211.54

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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.