Home / 2,845.44-3,928.64-1,783.64

Finding the Fourth Proportional to 2,845.44, 3,928.64 and 1,783.64

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Solution

The fourth proportional to 2,845.44, 3,928.64 and 1,783.64 is: 2,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.44 : 3,928.64 = 1,783.64 : x
  2. Step 2: Convert to fraction form
    2,845.44/3,928.64 = 1,783.64/x
  3. Step 3: Cross multiply
    2,845.44x = 3,928.64 × 1,783.64
  4. Step 4: Simplify right side
    2,845.44x = 7,007,279.45
  5. Step 5: Solve for x
    x = 7,007,279.45/2,845.44
  6. Step 6: Final answer
    x = 2,462.63

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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.