Home / 3,984.60-5,977.10-1,518.96

Finding the Fourth Proportional to 3,984.60, 5,977.10 and 1,518.96

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Solution

The fourth proportional to 3,984.60, 5,977.10 and 1,518.96 is: 2,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.60 : 5,977.10 = 1,518.96 : x
  2. Step 2: Convert to fraction form
    3,984.60/5,977.10 = 1,518.96/x
  3. Step 3: Cross multiply
    3,984.60x = 5,977.10 × 1,518.96
  4. Step 4: Simplify right side
    3,984.60x = 9,078,975.82
  5. Step 5: Solve for x
    x = 9,078,975.82/3,984.60
  6. Step 6: Final answer
    x = 2,278.52

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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.