Home / 2,758.04-4,138.88-1,297.31

Finding the Fourth Proportional to 2,758.04, 4,138.88 and 1,297.31

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Solution

The fourth proportional to 2,758.04, 4,138.88 and 1,297.31 is: 1,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.04 : 4,138.88 = 1,297.31 : x
  2. Step 2: Convert to fraction form
    2,758.04/4,138.88 = 1,297.31/x
  3. Step 3: Cross multiply
    2,758.04x = 4,138.88 × 1,297.31
  4. Step 4: Simplify right side
    2,758.04x = 5,369,383.23
  5. Step 5: Solve for x
    x = 5,369,383.23/2,758.04
  6. Step 6: Final answer
    x = 1,946.81

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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.