Home / 7,190.72-10,763.78-3,895.64

Finding the Fourth Proportional to 7,190.72, 10,763.78 and 3,895.64

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Solution

The fourth proportional to 7,190.72, 10,763.78 and 3,895.64 is: 5,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.72 : 10,763.78 = 3,895.64 : x
  2. Step 2: Convert to fraction form
    7,190.72/10,763.78 = 3,895.64/x
  3. Step 3: Cross multiply
    7,190.72x = 10,763.78 × 3,895.64
  4. Step 4: Simplify right side
    7,190.72x = 41,931,811.92
  5. Step 5: Solve for x
    x = 41,931,811.92/7,190.72
  6. Step 6: Final answer
    x = 5,831.38

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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.