Home / 5,148.48-7,717.60-2,072.64

Finding the Fourth Proportional to 5,148.48, 7,717.60 and 2,072.64

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Solution

The fourth proportional to 5,148.48, 7,717.60 and 2,072.64 is: 3,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.48 : 7,717.60 = 2,072.64 : x
  2. Step 2: Convert to fraction form
    5,148.48/7,717.60 = 2,072.64/x
  3. Step 3: Cross multiply
    5,148.48x = 7,717.60 × 2,072.64
  4. Step 4: Simplify right side
    5,148.48x = 15,995,806.46
  5. Step 5: Solve for x
    x = 15,995,806.46/5,148.48
  6. Step 6: Final answer
    x = 3,106.90

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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.