Home / 2,949.86-4,070.78-1,623.48

Finding the Fourth Proportional to 2,949.86, 4,070.78 and 1,623.48

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Solution

The fourth proportional to 2,949.86, 4,070.78 and 1,623.48 is: 2,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.86 : 4,070.78 = 1,623.48 : x
  2. Step 2: Convert to fraction form
    2,949.86/4,070.78 = 1,623.48/x
  3. Step 3: Cross multiply
    2,949.86x = 4,070.78 × 1,623.48
  4. Step 4: Simplify right side
    2,949.86x = 6,608,821.80
  5. Step 5: Solve for x
    x = 6,608,821.80/2,949.86
  6. Step 6: Final answer
    x = 2,240.39

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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.