Home / 3,071.79-4,238.55-1,745.28

Finding the Fourth Proportional to 3,071.79, 4,238.55 and 1,745.28

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Solution

The fourth proportional to 3,071.79, 4,238.55 and 1,745.28 is: 2,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.79 : 4,238.55 = 1,745.28 : x
  2. Step 2: Convert to fraction form
    3,071.79/4,238.55 = 1,745.28/x
  3. Step 3: Cross multiply
    3,071.79x = 4,238.55 × 1,745.28
  4. Step 4: Simplify right side
    3,071.79x = 7,397,456.54
  5. Step 5: Solve for x
    x = 7,397,456.54/3,071.79
  6. Step 6: Final answer
    x = 2,408.19

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1.5x scale

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.