Home / 2,148.26-3,220.29-1,109.43

Finding the Fourth Proportional to 2,148.26, 3,220.29 and 1,109.43

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Solution

The fourth proportional to 2,148.26, 3,220.29 and 1,109.43 is: 1,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.26 : 3,220.29 = 1,109.43 : x
  2. Step 2: Convert to fraction form
    2,148.26/3,220.29 = 1,109.43/x
  3. Step 3: Cross multiply
    2,148.26x = 3,220.29 × 1,109.43
  4. Step 4: Simplify right side
    2,148.26x = 3,572,686.33
  5. Step 5: Solve for x
    x = 3,572,686.33/2,148.26
  6. Step 6: Final answer
    x = 1,663.06

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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.