Home / 3,845.85-5,307.77-2,167.59

Finding the Fourth Proportional to 3,845.85, 5,307.77 and 2,167.59

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Solution

The fourth proportional to 3,845.85, 5,307.77 and 2,167.59 is: 2,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.85 : 5,307.77 = 2,167.59 : x
  2. Step 2: Convert to fraction form
    3,845.85/5,307.77 = 2,167.59/x
  3. Step 3: Cross multiply
    3,845.85x = 5,307.77 × 2,167.59
  4. Step 4: Simplify right side
    3,845.85x = 11,505,069.17
  5. Step 5: Solve for x
    x = 11,505,069.17/3,845.85
  6. Step 6: Final answer
    x = 2,991.55

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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.