Home / 3,076.65-4,615.77-1,431.27

Finding the Fourth Proportional to 3,076.65, 4,615.77 and 1,431.27

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Solution

The fourth proportional to 3,076.65, 4,615.77 and 1,431.27 is: 2,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.65 : 4,615.77 = 1,431.27 : x
  2. Step 2: Convert to fraction form
    3,076.65/4,615.77 = 1,431.27/x
  3. Step 3: Cross multiply
    3,076.65x = 4,615.77 × 1,431.27
  4. Step 4: Simplify right side
    3,076.65x = 6,606,413.13
  5. Step 5: Solve for x
    x = 6,606,413.13/3,076.65
  6. Step 6: Final answer
    x = 2,147.27

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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.