Home / 4,270.10-6,405.72-2,078.54

Finding the Fourth Proportional to 4,270.10, 6,405.72 and 2,078.54

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Solution

The fourth proportional to 4,270.10, 6,405.72 and 2,078.54 is: 3,118.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.10 : 6,405.72 = 2,078.54 : x
  2. Step 2: Convert to fraction form
    4,270.10/6,405.72 = 2,078.54/x
  3. Step 3: Cross multiply
    4,270.10x = 6,405.72 × 2,078.54
  4. Step 4: Simplify right side
    4,270.10x = 13,314,545.25
  5. Step 5: Solve for x
    x = 13,314,545.25/4,270.10
  6. Step 6: Final answer
    x = 3,118.09

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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.