Home / 2,399.02-3,311.89-2,005.36

Finding the Fourth Proportional to 2,399.02, 3,311.89 and 2,005.36

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Solution

The fourth proportional to 2,399.02, 3,311.89 and 2,005.36 is: 2,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.02 : 3,311.89 = 2,005.36 : x
  2. Step 2: Convert to fraction form
    2,399.02/3,311.89 = 2,005.36/x
  3. Step 3: Cross multiply
    2,399.02x = 3,311.89 × 2,005.36
  4. Step 4: Simplify right side
    2,399.02x = 6,641,518.44
  5. Step 5: Solve for x
    x = 6,641,518.44/2,399.02
  6. Step 6: Final answer
    x = 2,768.43

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1.5x scale

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.