Home / 3,940.77-5,433.21-3,230.04

Finding the Fourth Proportional to 3,940.77, 5,433.21 and 3,230.04

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Solution

The fourth proportional to 3,940.77, 5,433.21 and 3,230.04 is: 4,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.77 : 5,433.21 = 3,230.04 : x
  2. Step 2: Convert to fraction form
    3,940.77/5,433.21 = 3,230.04/x
  3. Step 3: Cross multiply
    3,940.77x = 5,433.21 × 3,230.04
  4. Step 4: Simplify right side
    3,940.77x = 17,549,485.63
  5. Step 5: Solve for x
    x = 17,549,485.63/3,940.77
  6. Step 6: Final answer
    x = 4,453.31

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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.