Home / 3,668.37-5,509.90-2,190.48

Finding the Fourth Proportional to 3,668.37, 5,509.90 and 2,190.48

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Solution

The fourth proportional to 3,668.37, 5,509.90 and 2,190.48 is: 3,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.37 : 5,509.90 = 2,190.48 : x
  2. Step 2: Convert to fraction form
    3,668.37/5,509.90 = 2,190.48/x
  3. Step 3: Cross multiply
    3,668.37x = 5,509.90 × 2,190.48
  4. Step 4: Simplify right side
    3,668.37x = 12,069,325.75
  5. Step 5: Solve for x
    x = 12,069,325.75/3,668.37
  6. Step 6: Final answer
    x = 3,290.11

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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.