Home / 3,147.35-4,721.60-1,297.44

Finding the Fourth Proportional to 3,147.35, 4,721.60 and 1,297.44

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Solution

The fourth proportional to 3,147.35, 4,721.60 and 1,297.44 is: 1,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.35 : 4,721.60 = 1,297.44 : x
  2. Step 2: Convert to fraction form
    3,147.35/4,721.60 = 1,297.44/x
  3. Step 3: Cross multiply
    3,147.35x = 4,721.60 × 1,297.44
  4. Step 4: Simplify right side
    3,147.35x = 6,125,992.70
  5. Step 5: Solve for x
    x = 6,125,992.70/3,147.35
  6. Step 6: Final answer
    x = 1,946.40

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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.