Home / 5,367.25-7,406.81-3,129.22

Finding the Fourth Proportional to 5,367.25, 7,406.81 and 3,129.22

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Solution

The fourth proportional to 5,367.25, 7,406.81 and 3,129.22 is: 4,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.25 : 7,406.81 = 3,129.22 : x
  2. Step 2: Convert to fraction form
    5,367.25/7,406.81 = 3,129.22/x
  3. Step 3: Cross multiply
    5,367.25x = 7,406.81 × 3,129.22
  4. Step 4: Simplify right side
    5,367.25x = 23,177,522.34
  5. Step 5: Solve for x
    x = 23,177,522.34/5,367.25
  6. Step 6: Final answer
    x = 4,318.32

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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.