Home / 1,738.09-2,605.38-1,089.28

Finding the Fourth Proportional to 1,738.09, 2,605.38 and 1,089.28

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Solution

The fourth proportional to 1,738.09, 2,605.38 and 1,089.28 is: 1,632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.09 : 2,605.38 = 1,089.28 : x
  2. Step 2: Convert to fraction form
    1,738.09/2,605.38 = 1,089.28/x
  3. Step 3: Cross multiply
    1,738.09x = 2,605.38 × 1,089.28
  4. Step 4: Simplify right side
    1,738.09x = 2,837,988.33
  5. Step 5: Solve for x
    x = 2,837,988.33/1,738.09
  6. Step 6: Final answer
    x = 1,632.82

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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.