Home / 3,763.20-5,222.40-3,609.60

Finding the Fourth Proportional to 3,763.20, 5,222.40 and 3,609.60

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Solution

The fourth proportional to 3,763.20, 5,222.40 and 3,609.60 is: 5,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.20 : 5,222.40 = 3,609.60 : x
  2. Step 2: Convert to fraction form
    3,763.20/5,222.40 = 3,609.60/x
  3. Step 3: Cross multiply
    3,763.20x = 5,222.40 × 3,609.60
  4. Step 4: Simplify right side
    3,763.20x = 18,850,775.04
  5. Step 5: Solve for x
    x = 18,850,775.04/3,763.20
  6. Step 6: Final answer
    x = 5,009.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.