Home / 2,072.16-3,106.35-1,339.38

Finding the Fourth Proportional to 2,072.16, 3,106.35 and 1,339.38

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Solution

The fourth proportional to 2,072.16, 3,106.35 and 1,339.38 is: 2,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.16 : 3,106.35 = 1,339.38 : x
  2. Step 2: Convert to fraction form
    2,072.16/3,106.35 = 1,339.38/x
  3. Step 3: Cross multiply
    2,072.16x = 3,106.35 × 1,339.38
  4. Step 4: Simplify right side
    2,072.16x = 4,160,583.06
  5. Step 5: Solve for x
    x = 4,160,583.06/2,072.16
  6. Step 6: Final answer
    x = 2,007.85

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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.