Home / 2,974.30-4,104.62-1,648.15

Finding the Fourth Proportional to 2,974.30, 4,104.62 and 1,648.15

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Solution

The fourth proportional to 2,974.30, 4,104.62 and 1,648.15 is: 2,274.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.30 : 4,104.62 = 1,648.15 : x
  2. Step 2: Convert to fraction form
    2,974.30/4,104.62 = 1,648.15/x
  3. Step 3: Cross multiply
    2,974.30x = 4,104.62 × 1,648.15
  4. Step 4: Simplify right side
    2,974.30x = 6,765,021.21
  5. Step 5: Solve for x
    x = 6,765,021.21/2,974.30
  6. Step 6: Final answer
    x = 2,274.49

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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.