Home / 4,949.21-6,830.79-2,959.99

Finding the Fourth Proportional to 4,949.21, 6,830.79 and 2,959.99

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Solution

The fourth proportional to 4,949.21, 6,830.79 and 2,959.99 is: 4,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.21 : 6,830.79 = 2,959.99 : x
  2. Step 2: Convert to fraction form
    4,949.21/6,830.79 = 2,959.99/x
  3. Step 3: Cross multiply
    4,949.21x = 6,830.79 × 2,959.99
  4. Step 4: Simplify right side
    4,949.21x = 20,219,035.94
  5. Step 5: Solve for x
    x = 20,219,035.94/4,949.21
  6. Step 6: Final answer
    x = 4,085.31

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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.