Home / 5,409.56-8,112.73-2,289.49

Finding the Fourth Proportional to 5,409.56, 8,112.73 and 2,289.49

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Solution

The fourth proportional to 5,409.56, 8,112.73 and 2,289.49 is: 3,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.56 : 8,112.73 = 2,289.49 : x
  2. Step 2: Convert to fraction form
    5,409.56/8,112.73 = 2,289.49/x
  3. Step 3: Cross multiply
    5,409.56x = 8,112.73 × 2,289.49
  4. Step 4: Simplify right side
    5,409.56x = 18,574,021.75
  5. Step 5: Solve for x
    x = 18,574,021.75/5,409.56
  6. Step 6: Final answer
    x = 3,433.56

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1.5x scale

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.