Home / 3,571.29-5,356.53-1,105.65

Finding the Fourth Proportional to 3,571.29, 5,356.53 and 1,105.65

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Solution

The fourth proportional to 3,571.29, 5,356.53 and 1,105.65 is: 1,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.29 : 5,356.53 = 1,105.65 : x
  2. Step 2: Convert to fraction form
    3,571.29/5,356.53 = 1,105.65/x
  3. Step 3: Cross multiply
    3,571.29x = 5,356.53 × 1,105.65
  4. Step 4: Simplify right side
    3,571.29x = 5,922,447.39
  5. Step 5: Solve for x
    x = 5,922,447.39/3,571.29
  6. Step 6: Final answer
    x = 1,658.35

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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.