Home / 4,964.80-7,447.20-3,409.60

Finding the Fourth Proportional to 4,964.80, 7,447.20 and 3,409.60

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Solution

The fourth proportional to 4,964.80, 7,447.20 and 3,409.60 is: 5,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,964.80 : 7,447.20 = 3,409.60 : x
  2. Step 2: Convert to fraction form
    4,964.80/7,447.20 = 3,409.60/x
  3. Step 3: Cross multiply
    4,964.80x = 7,447.20 × 3,409.60
  4. Step 4: Simplify right side
    4,964.80x = 25,391,973.12
  5. Step 5: Solve for x
    x = 25,391,973.12/4,964.80
  6. Step 6: Final answer
    x = 5,114.40

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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.