Home / 4,115.20-6,170.91-1,192.81

Finding the Fourth Proportional to 4,115.20, 6,170.91 and 1,192.81

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Solution

The fourth proportional to 4,115.20, 6,170.91 and 1,192.81 is: 1,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.20 : 6,170.91 = 1,192.81 : x
  2. Step 2: Convert to fraction form
    4,115.20/6,170.91 = 1,192.81/x
  3. Step 3: Cross multiply
    4,115.20x = 6,170.91 × 1,192.81
  4. Step 4: Simplify right side
    4,115.20x = 7,360,723.16
  5. Step 5: Solve for x
    x = 7,360,723.16/4,115.20
  6. Step 6: Final answer
    x = 1,788.67

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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.