Home / 4,019.20-5,552.64-3,609.60

Finding the Fourth Proportional to 4,019.20, 5,552.64 and 3,609.60

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Solution

The fourth proportional to 4,019.20, 5,552.64 and 3,609.60 is: 4,986.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,019.20 : 5,552.64 = 3,609.60 : x
  2. Step 2: Convert to fraction form
    4,019.20/5,552.64 = 3,609.60/x
  3. Step 3: Cross multiply
    4,019.20x = 5,552.64 × 3,609.60
  4. Step 4: Simplify right side
    4,019.20x = 20,042,809.34
  5. Step 5: Solve for x
    x = 20,042,809.34/4,019.20
  6. Step 6: Final answer
    x = 4,986.77

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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.