Home / 3,636.76-5,020.12-2,311.60

Finding the Fourth Proportional to 3,636.76, 5,020.12 and 2,311.60

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Solution

The fourth proportional to 3,636.76, 5,020.12 and 2,311.60 is: 3,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.76 : 5,020.12 = 2,311.60 : x
  2. Step 2: Convert to fraction form
    3,636.76/5,020.12 = 2,311.60/x
  3. Step 3: Cross multiply
    3,636.76x = 5,020.12 × 2,311.60
  4. Step 4: Simplify right side
    3,636.76x = 11,604,509.39
  5. Step 5: Solve for x
    x = 11,604,509.39/3,636.76
  6. Step 6: Final answer
    x = 3,190.89

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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.