Home / 2,835.02-3,912.08-1,639.80

Finding the Fourth Proportional to 2,835.02, 3,912.08 and 1,639.80

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Solution

The fourth proportional to 2,835.02, 3,912.08 and 1,639.80 is: 2,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.02 : 3,912.08 = 1,639.80 : x
  2. Step 2: Convert to fraction form
    2,835.02/3,912.08 = 1,639.80/x
  3. Step 3: Cross multiply
    2,835.02x = 3,912.08 × 1,639.80
  4. Step 4: Simplify right side
    2,835.02x = 6,415,020.59
  5. Step 5: Solve for x
    x = 6,415,020.59/2,835.02
  6. Step 6: Final answer
    x = 2,262.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.