Home / 5,384.48-8,078.40-2,097.60

Finding the Fourth Proportional to 5,384.48, 8,078.40 and 2,097.60

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Solution

The fourth proportional to 5,384.48, 8,078.40 and 2,097.60 is: 3,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.48 : 8,078.40 = 2,097.60 : x
  2. Step 2: Convert to fraction form
    5,384.48/8,078.40 = 2,097.60/x
  3. Step 3: Cross multiply
    5,384.48x = 8,078.40 × 2,097.60
  4. Step 4: Simplify right side
    5,384.48x = 16,945,251.84
  5. Step 5: Solve for x
    x = 16,945,251.84/5,384.48
  6. Step 6: Final answer
    x = 3,147.05

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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.