Home / 3,185.89-4,396.48-1,860.68

Finding the Fourth Proportional to 3,185.89, 4,396.48 and 1,860.68

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Solution

The fourth proportional to 3,185.89, 4,396.48 and 1,860.68 is: 2,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.89 : 4,396.48 = 1,860.68 : x
  2. Step 2: Convert to fraction form
    3,185.89/4,396.48 = 1,860.68/x
  3. Step 3: Cross multiply
    3,185.89x = 4,396.48 × 1,860.68
  4. Step 4: Simplify right side
    3,185.89x = 8,180,448.75
  5. Step 5: Solve for x
    x = 8,180,448.75/3,185.89
  6. Step 6: Final answer
    x = 2,567.71

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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.