Home / 4,908.39-6,778.04-3,143.06

Finding the Fourth Proportional to 4,908.39, 6,778.04 and 3,143.06

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Solution

The fourth proportional to 4,908.39, 6,778.04 and 3,143.06 is: 4,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.39 : 6,778.04 = 3,143.06 : x
  2. Step 2: Convert to fraction form
    4,908.39/6,778.04 = 3,143.06/x
  3. Step 3: Cross multiply
    4,908.39x = 6,778.04 × 3,143.06
  4. Step 4: Simplify right side
    4,908.39x = 21,303,786.40
  5. Step 5: Solve for x
    x = 21,303,786.40/4,908.39
  6. Step 6: Final answer
    x = 4,340.28

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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.