Home / 2,884.40-3,980.32-1,625.44

Finding the Fourth Proportional to 2,884.40, 3,980.32 and 1,625.44

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Solution

The fourth proportional to 2,884.40, 3,980.32 and 1,625.44 is: 2,243.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.40 : 3,980.32 = 1,625.44 : x
  2. Step 2: Convert to fraction form
    2,884.40/3,980.32 = 1,625.44/x
  3. Step 3: Cross multiply
    2,884.40x = 3,980.32 × 1,625.44
  4. Step 4: Simplify right side
    2,884.40x = 6,469,771.34
  5. Step 5: Solve for x
    x = 6,469,771.34/2,884.40
  6. Step 6: Final answer
    x = 2,243.02

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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.