Home / 5,409.26-7,464.88-3,172.75

Finding the Fourth Proportional to 5,409.26, 7,464.88 and 3,172.75

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Solution

The fourth proportional to 5,409.26, 7,464.88 and 3,172.75 is: 4,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.26 : 7,464.88 = 3,172.75 : x
  2. Step 2: Convert to fraction form
    5,409.26/7,464.88 = 3,172.75/x
  3. Step 3: Cross multiply
    5,409.26x = 7,464.88 × 3,172.75
  4. Step 4: Simplify right side
    5,409.26x = 23,684,198.02
  5. Step 5: Solve for x
    x = 23,684,198.02/5,409.26
  6. Step 6: Final answer
    x = 4,378.45

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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.