Home / 5,270.69-7,882.79-4,689.79

Finding the Fourth Proportional to 5,270.69, 7,882.79 and 4,689.79

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Solution

The fourth proportional to 5,270.69, 7,882.79 and 4,689.79 is: 7,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.69 : 7,882.79 = 4,689.79 : x
  2. Step 2: Convert to fraction form
    5,270.69/7,882.79 = 4,689.79/x
  3. Step 3: Cross multiply
    5,270.69x = 7,882.79 × 4,689.79
  4. Step 4: Simplify right side
    5,270.69x = 36,968,586.56
  5. Step 5: Solve for x
    x = 36,968,586.56/5,270.69
  6. Step 6: Final answer
    x = 7,013.99

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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.