Home / 2,110.90-3,166.80-1,071.04

Finding the Fourth Proportional to 2,110.90, 3,166.80 and 1,071.04

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Solution

The fourth proportional to 2,110.90, 3,166.80 and 1,071.04 is: 1,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.90 : 3,166.80 = 1,071.04 : x
  2. Step 2: Convert to fraction form
    2,110.90/3,166.80 = 1,071.04/x
  3. Step 3: Cross multiply
    2,110.90x = 3,166.80 × 1,071.04
  4. Step 4: Simplify right side
    2,110.90x = 3,391,769.47
  5. Step 5: Solve for x
    x = 3,391,769.47/2,110.90
  6. Step 6: Final answer
    x = 1,606.79

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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.