Home / 1,743.56-2,615.43-445.04

Finding the Fourth Proportional to 1,743.56, 2,615.43 and 445.04

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Solution

The fourth proportional to 1,743.56, 2,615.43 and 445.04 is: 667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.56 : 2,615.43 = 445.04 : x
  2. Step 2: Convert to fraction form
    1,743.56/2,615.43 = 445.04/x
  3. Step 3: Cross multiply
    1,743.56x = 2,615.43 × 445.04
  4. Step 4: Simplify right side
    1,743.56x = 1,163,970.97
  5. Step 5: Solve for x
    x = 1,163,970.97/1,743.56
  6. Step 6: Final answer
    x = 667.58

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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.