Home / 3,147.39-4,721.09-1,297.35

Finding the Fourth Proportional to 3,147.39, 4,721.09 and 1,297.35

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Solution

The fourth proportional to 3,147.39, 4,721.09 and 1,297.35 is: 1,946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.39 : 4,721.09 = 1,297.35 : x
  2. Step 2: Convert to fraction form
    3,147.39/4,721.09 = 1,297.35/x
  3. Step 3: Cross multiply
    3,147.39x = 4,721.09 × 1,297.35
  4. Step 4: Simplify right side
    3,147.39x = 6,124,899.62
  5. Step 5: Solve for x
    x = 6,124,899.62/3,147.39
  6. Step 6: Final answer
    x = 1,946.03

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1.5x scale

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.