Home / 5,148.16-7,717.92-2,072.32

Finding the Fourth Proportional to 5,148.16, 7,717.92 and 2,072.32

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Solution

The fourth proportional to 5,148.16, 7,717.92 and 2,072.32 is: 3,106.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.16 : 7,717.92 = 2,072.32 : x
  2. Step 2: Convert to fraction form
    5,148.16/7,717.92 = 2,072.32/x
  3. Step 3: Cross multiply
    5,148.16x = 7,717.92 × 2,072.32
  4. Step 4: Simplify right side
    5,148.16x = 15,993,999.97
  5. Step 5: Solve for x
    x = 15,993,999.97/5,148.16
  6. Step 6: Final answer
    x = 3,106.74

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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.