Home / 4,270.60-6,405.90-3,406.60

Finding the Fourth Proportional to 4,270.60, 6,405.90 and 3,406.60

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Solution

The fourth proportional to 4,270.60, 6,405.90 and 3,406.60 is: 5,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.60 : 6,405.90 = 3,406.60 : x
  2. Step 2: Convert to fraction form
    4,270.60/6,405.90 = 3,406.60/x
  3. Step 3: Cross multiply
    4,270.60x = 6,405.90 × 3,406.60
  4. Step 4: Simplify right side
    4,270.60x = 21,822,338.94
  5. Step 5: Solve for x
    x = 21,822,338.94/4,270.60
  6. Step 6: Final answer
    x = 5,109.90

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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.