Home / 3,941.38-5,909.12-1,860.19

Finding the Fourth Proportional to 3,941.38, 5,909.12 and 1,860.19

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Solution

The fourth proportional to 3,941.38, 5,909.12 and 1,860.19 is: 2,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.38 : 5,909.12 = 1,860.19 : x
  2. Step 2: Convert to fraction form
    3,941.38/5,909.12 = 1,860.19/x
  3. Step 3: Cross multiply
    3,941.38x = 5,909.12 × 1,860.19
  4. Step 4: Simplify right side
    3,941.38x = 10,992,047.09
  5. Step 5: Solve for x
    x = 10,992,047.09/3,941.38
  6. Step 6: Final answer
    x = 2,788.89

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1.5x scale

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.