Home / 3,919.30-5,873.60-1,972.84

Finding the Fourth Proportional to 3,919.30, 5,873.60 and 1,972.84

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Solution

The fourth proportional to 3,919.30, 5,873.60 and 1,972.84 is: 2,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.30 : 5,873.60 = 1,972.84 : x
  2. Step 2: Convert to fraction form
    3,919.30/5,873.60 = 1,972.84/x
  3. Step 3: Cross multiply
    3,919.30x = 5,873.60 × 1,972.84
  4. Step 4: Simplify right side
    3,919.30x = 11,587,673.02
  5. Step 5: Solve for x
    x = 11,587,673.02/3,919.30
  6. Step 6: Final answer
    x = 2,956.57

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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.