Home / 2,092.08-3,138.80-705.46

Finding the Fourth Proportional to 2,092.08, 3,138.80 and 705.46

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Solution

The fourth proportional to 2,092.08, 3,138.80 and 705.46 is: 1,058.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.08 : 3,138.80 = 705.46 : x
  2. Step 2: Convert to fraction form
    2,092.08/3,138.80 = 705.46/x
  3. Step 3: Cross multiply
    2,092.08x = 3,138.80 × 705.46
  4. Step 4: Simplify right side
    2,092.08x = 2,214,297.85
  5. Step 5: Solve for x
    x = 2,214,297.85/2,092.08
  6. Step 6: Final answer
    x = 1,058.42

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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.