Home / 2,976.80-4,464.12-1,126.96

Finding the Fourth Proportional to 2,976.80, 4,464.12 and 1,126.96

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Solution

The fourth proportional to 2,976.80, 4,464.12 and 1,126.96 is: 1,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.80 : 4,464.12 = 1,126.96 : x
  2. Step 2: Convert to fraction form
    2,976.80/4,464.12 = 1,126.96/x
  3. Step 3: Cross multiply
    2,976.80x = 4,464.12 × 1,126.96
  4. Step 4: Simplify right side
    2,976.80x = 5,030,884.68
  5. Step 5: Solve for x
    x = 5,030,884.68/2,976.80
  6. Step 6: Final answer
    x = 1,690.03

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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.