Home / 3,072.16-4,239.06-1,745.68

Finding the Fourth Proportional to 3,072.16, 4,239.06 and 1,745.68

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Solution

The fourth proportional to 3,072.16, 4,239.06 and 1,745.68 is: 2,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.16 : 4,239.06 = 1,745.68 : x
  2. Step 2: Convert to fraction form
    3,072.16/4,239.06 = 1,745.68/x
  3. Step 3: Cross multiply
    3,072.16x = 4,239.06 × 1,745.68
  4. Step 4: Simplify right side
    3,072.16x = 7,400,042.26
  5. Step 5: Solve for x
    x = 7,400,042.26/3,072.16
  6. Step 6: Final answer
    x = 2,408.74

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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.