Home / 5,358.90-8,026.20-3,390.60

Finding the Fourth Proportional to 5,358.90, 8,026.20 and 3,390.60

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Solution

The fourth proportional to 5,358.90, 8,026.20 and 3,390.60 is: 5,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.90 : 8,026.20 = 3,390.60 : x
  2. Step 2: Convert to fraction form
    5,358.90/8,026.20 = 3,390.60/x
  3. Step 3: Cross multiply
    5,358.90x = 8,026.20 × 3,390.60
  4. Step 4: Simplify right side
    5,358.90x = 27,213,633.72
  5. Step 5: Solve for x
    x = 27,213,633.72/5,358.90
  6. Step 6: Final answer
    x = 5,078.21

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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.