Home / 4,111.20-6,164.91-1,188.81

Finding the Fourth Proportional to 4,111.20, 6,164.91 and 1,188.81

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Solution

The fourth proportional to 4,111.20, 6,164.91 and 1,188.81 is: 1,782.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.20 : 6,164.91 = 1,188.81 : x
  2. Step 2: Convert to fraction form
    4,111.20/6,164.91 = 1,188.81/x
  3. Step 3: Cross multiply
    4,111.20x = 6,164.91 × 1,188.81
  4. Step 4: Simplify right side
    4,111.20x = 7,328,906.66
  5. Step 5: Solve for x
    x = 7,328,906.66/4,111.20
  6. Step 6: Final answer
    x = 1,782.67

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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.