Home / 3,720.20-5,537.80-3,664.84

Finding the Fourth Proportional to 3,720.20, 5,537.80 and 3,664.84

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Solution

The fourth proportional to 3,720.20, 5,537.80 and 3,664.84 is: 5,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.20 : 5,537.80 = 3,664.84 : x
  2. Step 2: Convert to fraction form
    3,720.20/5,537.80 = 3,664.84/x
  3. Step 3: Cross multiply
    3,720.20x = 5,537.80 × 3,664.84
  4. Step 4: Simplify right side
    3,720.20x = 20,295,150.95
  5. Step 5: Solve for x
    x = 20,295,150.95/3,720.20
  6. Step 6: Final answer
    x = 5,455.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.