Home / 5,388.66-8,080.65-2,099.88

Finding the Fourth Proportional to 5,388.66, 8,080.65 and 2,099.88

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Solution

The fourth proportional to 5,388.66, 8,080.65 and 2,099.88 is: 3,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.66 : 8,080.65 = 2,099.88 : x
  2. Step 2: Convert to fraction form
    5,388.66/8,080.65 = 2,099.88/x
  3. Step 3: Cross multiply
    5,388.66x = 8,080.65 × 2,099.88
  4. Step 4: Simplify right side
    5,388.66x = 16,968,395.32
  5. Step 5: Solve for x
    x = 16,968,395.32/5,388.66
  6. Step 6: Final answer
    x = 3,148.91

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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.