Home / 5,919.87-8,881.56-1,971.64

Finding the Fourth Proportional to 5,919.87, 8,881.56 and 1,971.64

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Solution

The fourth proportional to 5,919.87, 8,881.56 and 1,971.64 is: 2,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.87 : 8,881.56 = 1,971.64 : x
  2. Step 2: Convert to fraction form
    5,919.87/8,881.56 = 1,971.64/x
  3. Step 3: Cross multiply
    5,919.87x = 8,881.56 × 1,971.64
  4. Step 4: Simplify right side
    5,919.87x = 17,511,216.75
  5. Step 5: Solve for x
    x = 17,511,216.75/5,919.87
  6. Step 6: Final answer
    x = 2,958.04

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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.