Home / 8,179.41-12,270.93-2,985.27

Finding the Fourth Proportional to 8,179.41, 12,270.93 and 2,985.27

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Solution

The fourth proportional to 8,179.41, 12,270.93 and 2,985.27 is: 4,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.41 : 12,270.93 = 2,985.27 : x
  2. Step 2: Convert to fraction form
    8,179.41/12,270.93 = 2,985.27/x
  3. Step 3: Cross multiply
    8,179.41x = 12,270.93 × 2,985.27
  4. Step 4: Simplify right side
    8,179.41x = 36,632,039.20
  5. Step 5: Solve for x
    x = 36,632,039.20/8,179.41
  6. Step 6: Final answer
    x = 4,478.57

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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.