Home / 2,060.80-2,845.44-1,440.64

Finding the Fourth Proportional to 2,060.80, 2,845.44 and 1,440.64

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Solution

The fourth proportional to 2,060.80, 2,845.44 and 1,440.64 is: 1,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.80 : 2,845.44 = 1,440.64 : x
  2. Step 2: Convert to fraction form
    2,060.80/2,845.44 = 1,440.64/x
  3. Step 3: Cross multiply
    2,060.80x = 2,845.44 × 1,440.64
  4. Step 4: Simplify right side
    2,060.80x = 4,099,254.68
  5. Step 5: Solve for x
    x = 4,099,254.68/2,060.80
  6. Step 6: Final answer
    x = 1,989.16

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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.