Home / 3,860.85-5,327.97-2,092.45

Finding the Fourth Proportional to 3,860.85, 5,327.97 and 2,092.45

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Solution

The fourth proportional to 3,860.85, 5,327.97 and 2,092.45 is: 2,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.85 : 5,327.97 = 2,092.45 : x
  2. Step 2: Convert to fraction form
    3,860.85/5,327.97 = 2,092.45/x
  3. Step 3: Cross multiply
    3,860.85x = 5,327.97 × 2,092.45
  4. Step 4: Simplify right side
    3,860.85x = 11,148,510.83
  5. Step 5: Solve for x
    x = 11,148,510.83/3,860.85
  6. Step 6: Final answer
    x = 2,887.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.