Home / 2,949.38-4,070.21-1,623.09

Finding the Fourth Proportional to 2,949.38, 4,070.21 and 1,623.09

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Solution

The fourth proportional to 2,949.38, 4,070.21 and 1,623.09 is: 2,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.38 : 4,070.21 = 1,623.09 : x
  2. Step 2: Convert to fraction form
    2,949.38/4,070.21 = 1,623.09/x
  3. Step 3: Cross multiply
    2,949.38x = 4,070.21 × 1,623.09
  4. Step 4: Simplify right side
    2,949.38x = 6,606,302.54
  5. Step 5: Solve for x
    x = 6,606,302.54/2,949.38
  6. Step 6: Final answer
    x = 2,239.89

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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.