Home / 3,176.90-4,768.05-1,424.60

Finding the Fourth Proportional to 3,176.90, 4,768.05 and 1,424.60

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Solution

The fourth proportional to 3,176.90, 4,768.05 and 1,424.60 is: 2,138.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.90 : 4,768.05 = 1,424.60 : x
  2. Step 2: Convert to fraction form
    3,176.90/4,768.05 = 1,424.60/x
  3. Step 3: Cross multiply
    3,176.90x = 4,768.05 × 1,424.60
  4. Step 4: Simplify right side
    3,176.90x = 6,792,564.03
  5. Step 5: Solve for x
    x = 6,792,564.03/3,176.90
  6. Step 6: Final answer
    x = 2,138.11

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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.