Home / 3,477.78-5,216.88-1,138.03

Finding the Fourth Proportional to 3,477.78, 5,216.88 and 1,138.03

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Solution

The fourth proportional to 3,477.78, 5,216.88 and 1,138.03 is: 1,707.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.78 : 5,216.88 = 1,138.03 : x
  2. Step 2: Convert to fraction form
    3,477.78/5,216.88 = 1,138.03/x
  3. Step 3: Cross multiply
    3,477.78x = 5,216.88 × 1,138.03
  4. Step 4: Simplify right side
    3,477.78x = 5,936,976.74
  5. Step 5: Solve for x
    x = 5,936,976.74/3,477.78
  6. Step 6: Final answer
    x = 1,707.11

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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.