Home / 2,778.33-4,170.78-1,136.10

Finding the Fourth Proportional to 2,778.33, 4,170.78 and 1,136.10

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Solution

The fourth proportional to 2,778.33, 4,170.78 and 1,136.10 is: 1,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.33 : 4,170.78 = 1,136.10 : x
  2. Step 2: Convert to fraction form
    2,778.33/4,170.78 = 1,136.10/x
  3. Step 3: Cross multiply
    2,778.33x = 4,170.78 × 1,136.10
  4. Step 4: Simplify right side
    2,778.33x = 4,738,423.16
  5. Step 5: Solve for x
    x = 4,738,423.16/2,778.33
  6. Step 6: Final answer
    x = 1,705.49

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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.