Home / 3,072.38-4,239.86-1,745.82

Finding the Fourth Proportional to 3,072.38, 4,239.86 and 1,745.82

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Solution

The fourth proportional to 3,072.38, 4,239.86 and 1,745.82 is: 2,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.38 : 4,239.86 = 1,745.82 : x
  2. Step 2: Convert to fraction form
    3,072.38/4,239.86 = 1,745.82/x
  3. Step 3: Cross multiply
    3,072.38x = 4,239.86 × 1,745.82
  4. Step 4: Simplify right side
    3,072.38x = 7,402,033.48
  5. Step 5: Solve for x
    x = 7,402,033.48/3,072.38
  6. Step 6: Final answer
    x = 2,409.22

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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.