Home / 2,005.02-2,766.81-1,120.65

Finding the Fourth Proportional to 2,005.02, 2,766.81 and 1,120.65

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Solution

The fourth proportional to 2,005.02, 2,766.81 and 1,120.65 is: 1,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.02 : 2,766.81 = 1,120.65 : x
  2. Step 2: Convert to fraction form
    2,005.02/2,766.81 = 1,120.65/x
  3. Step 3: Cross multiply
    2,005.02x = 2,766.81 × 1,120.65
  4. Step 4: Simplify right side
    2,005.02x = 3,100,625.63
  5. Step 5: Solve for x
    x = 3,100,625.63/2,005.02
  6. Step 6: Final answer
    x = 1,546.43

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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.