Home / 3,844.64-5,775.60-2,112.32

Finding the Fourth Proportional to 3,844.64, 5,775.60 and 2,112.32

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Solution

The fourth proportional to 3,844.64, 5,775.60 and 2,112.32 is: 3,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.64 : 5,775.60 = 2,112.32 : x
  2. Step 2: Convert to fraction form
    3,844.64/5,775.60 = 2,112.32/x
  3. Step 3: Cross multiply
    3,844.64x = 5,775.60 × 2,112.32
  4. Step 4: Simplify right side
    3,844.64x = 12,199,915.39
  5. Step 5: Solve for x
    x = 12,199,915.39/3,844.64
  6. Step 6: Final answer
    x = 3,173.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.