Home / 2,110.65-2,912.69-1,166.43

Finding the Fourth Proportional to 2,110.65, 2,912.69 and 1,166.43

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Solution

The fourth proportional to 2,110.65, 2,912.69 and 1,166.43 is: 1,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.65 : 2,912.69 = 1,166.43 : x
  2. Step 2: Convert to fraction form
    2,110.65/2,912.69 = 1,166.43/x
  3. Step 3: Cross multiply
    2,110.65x = 2,912.69 × 1,166.43
  4. Step 4: Simplify right side
    2,110.65x = 3,397,443.16
  5. Step 5: Solve for x
    x = 3,397,443.16/2,110.65
  6. Step 6: Final answer
    x = 1,609.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.