Home / 3,122.44-4,307.64-2,003.02

Finding the Fourth Proportional to 3,122.44, 4,307.64 and 2,003.02

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Solution

The fourth proportional to 3,122.44, 4,307.64 and 2,003.02 is: 2,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.44 : 4,307.64 = 2,003.02 : x
  2. Step 2: Convert to fraction form
    3,122.44/4,307.64 = 2,003.02/x
  3. Step 3: Cross multiply
    3,122.44x = 4,307.64 × 2,003.02
  4. Step 4: Simplify right side
    3,122.44x = 8,628,289.07
  5. Step 5: Solve for x
    x = 8,628,289.07/3,122.44
  6. Step 6: Final answer
    x = 2,763.32

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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.