Home / 5,351.36-7,391.94-4,107.78

Finding the Fourth Proportional to 5,351.36, 7,391.94 and 4,107.78

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Solution

The fourth proportional to 5,351.36, 7,391.94 and 4,107.78 is: 5,674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.36 : 7,391.94 = 4,107.78 : x
  2. Step 2: Convert to fraction form
    5,351.36/7,391.94 = 4,107.78/x
  3. Step 3: Cross multiply
    5,351.36x = 7,391.94 × 4,107.78
  4. Step 4: Simplify right side
    5,351.36x = 30,364,491.01
  5. Step 5: Solve for x
    x = 30,364,491.01/5,351.36
  6. Step 6: Final answer
    x = 5,674.16

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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.