Home / 3,860.45-5,327.40-2,092.05

Finding the Fourth Proportional to 3,860.45, 5,327.40 and 2,092.05

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Solution

The fourth proportional to 3,860.45, 5,327.40 and 2,092.05 is: 2,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.45 : 5,327.40 = 2,092.05 : x
  2. Step 2: Convert to fraction form
    3,860.45/5,327.40 = 2,092.05/x
  3. Step 3: Cross multiply
    3,860.45x = 5,327.40 × 2,092.05
  4. Step 4: Simplify right side
    3,860.45x = 11,145,187.17
  5. Step 5: Solve for x
    x = 11,145,187.17/3,860.45
  6. Step 6: Final answer
    x = 2,887.02

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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.