Home / 2,990.44-4,485.12-1,116

Finding the Fourth Proportional to 2,990.44, 4,485.12 and 1,116

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Solution

The fourth proportional to 2,990.44, 4,485.12 and 1,116 is: 1,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.44 : 4,485.12 = 1,116 : x
  2. Step 2: Convert to fraction form
    2,990.44/4,485.12 = 1,116/x
  3. Step 3: Cross multiply
    2,990.44x = 4,485.12 × 1,116
  4. Step 4: Simplify right side
    2,990.44x = 5,005,393.92
  5. Step 5: Solve for x
    x = 5,005,393.92/2,990.44
  6. Step 6: Final answer
    x = 1,673.80

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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.