Home / 1,745.09-2,408.69-1,081.57

Finding the Fourth Proportional to 1,745.09, 2,408.69 and 1,081.57

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Solution

The fourth proportional to 1,745.09, 2,408.69 and 1,081.57 is: 1,492.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.09 : 2,408.69 = 1,081.57 : x
  2. Step 2: Convert to fraction form
    1,745.09/2,408.69 = 1,081.57/x
  3. Step 3: Cross multiply
    1,745.09x = 2,408.69 × 1,081.57
  4. Step 4: Simplify right side
    1,745.09x = 2,605,166.84
  5. Step 5: Solve for x
    x = 2,605,166.84/1,745.09
  6. Step 6: Final answer
    x = 1,492.86

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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.