Home / 2,949.78-4,421.97-1,910.16

Finding the Fourth Proportional to 2,949.78, 4,421.97 and 1,910.16

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Solution

The fourth proportional to 2,949.78, 4,421.97 and 1,910.16 is: 2,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.78 : 4,421.97 = 1,910.16 : x
  2. Step 2: Convert to fraction form
    2,949.78/4,421.97 = 1,910.16/x
  3. Step 3: Cross multiply
    2,949.78x = 4,421.97 × 1,910.16
  4. Step 4: Simplify right side
    2,949.78x = 8,446,670.22
  5. Step 5: Solve for x
    x = 8,446,670.22/2,949.78
  6. Step 6: Final answer
    x = 2,863.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.