Home / 2,949.78-4,070.66-1,623.44

Finding the Fourth Proportional to 2,949.78, 4,070.66 and 1,623.44

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Solution

The fourth proportional to 2,949.78, 4,070.66 and 1,623.44 is: 2,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.78 : 4,070.66 = 1,623.44 : x
  2. Step 2: Convert to fraction form
    2,949.78/4,070.66 = 1,623.44/x
  3. Step 3: Cross multiply
    2,949.78x = 4,070.66 × 1,623.44
  4. Step 4: Simplify right side
    2,949.78x = 6,608,472.27
  5. Step 5: Solve for x
    x = 6,608,472.27/2,949.78
  6. Step 6: Final answer
    x = 2,240.33

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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.