Home / 2,004.80-2,766.40-1,120.48

Finding the Fourth Proportional to 2,004.80, 2,766.40 and 1,120.48

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Solution

The fourth proportional to 2,004.80, 2,766.40 and 1,120.48 is: 1,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.80 : 2,766.40 = 1,120.48 : x
  2. Step 2: Convert to fraction form
    2,004.80/2,766.40 = 1,120.48/x
  3. Step 3: Cross multiply
    2,004.80x = 2,766.40 × 1,120.48
  4. Step 4: Simplify right side
    2,004.80x = 3,099,695.87
  5. Step 5: Solve for x
    x = 3,099,695.87/2,004.80
  6. Step 6: Final answer
    x = 1,546.14

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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.