Home / 5,422.76-8,137.02-3,081.32

Finding the Fourth Proportional to 5,422.76, 8,137.02 and 3,081.32

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Solution

The fourth proportional to 5,422.76, 8,137.02 and 3,081.32 is: 4,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.76 : 8,137.02 = 3,081.32 : x
  2. Step 2: Convert to fraction form
    5,422.76/8,137.02 = 3,081.32/x
  3. Step 3: Cross multiply
    5,422.76x = 8,137.02 × 3,081.32
  4. Step 4: Simplify right side
    5,422.76x = 25,072,762.47
  5. Step 5: Solve for x
    x = 25,072,762.47/5,422.76
  6. Step 6: Final answer
    x = 4,623.62

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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.