Home / 2,984.81-4,106.99-2,908.49

Finding the Fourth Proportional to 2,984.81, 4,106.99 and 2,908.49

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Solution

The fourth proportional to 2,984.81, 4,106.99 and 2,908.49 is: 4,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.81 : 4,106.99 = 2,908.49 : x
  2. Step 2: Convert to fraction form
    2,984.81/4,106.99 = 2,908.49/x
  3. Step 3: Cross multiply
    2,984.81x = 4,106.99 × 2,908.49
  4. Step 4: Simplify right side
    2,984.81x = 11,945,124.80
  5. Step 5: Solve for x
    x = 11,945,124.80/2,984.81
  6. Step 6: Final answer
    x = 4,001.97

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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.