Home / 2,622.80-3,949.73-1,897.44

Finding the Fourth Proportional to 2,622.80, 3,949.73 and 1,897.44

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Solution

The fourth proportional to 2,622.80, 3,949.73 and 1,897.44 is: 2,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.80 : 3,949.73 = 1,897.44 : x
  2. Step 2: Convert to fraction form
    2,622.80/3,949.73 = 1,897.44/x
  3. Step 3: Cross multiply
    2,622.80x = 3,949.73 × 1,897.44
  4. Step 4: Simplify right side
    2,622.80x = 7,494,366.20
  5. Step 5: Solve for x
    x = 7,494,366.20/2,622.80
  6. Step 6: Final answer
    x = 2,857.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.