Home / 3,191.17-4,785.61-1,110.67

Finding the Fourth Proportional to 3,191.17, 4,785.61 and 1,110.67

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Solution

The fourth proportional to 3,191.17, 4,785.61 and 1,110.67 is: 1,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.17 : 4,785.61 = 1,110.67 : x
  2. Step 2: Convert to fraction form
    3,191.17/4,785.61 = 1,110.67/x
  3. Step 3: Cross multiply
    3,191.17x = 4,785.61 × 1,110.67
  4. Step 4: Simplify right side
    3,191.17x = 5,315,233.46
  5. Step 5: Solve for x
    x = 5,315,233.46/3,191.17
  6. Step 6: Final answer
    x = 1,665.61

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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.