Home / 3,136.36-4,705.78-1,189.08

Finding the Fourth Proportional to 3,136.36, 4,705.78 and 1,189.08

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Solution

The fourth proportional to 3,136.36, 4,705.78 and 1,189.08 is: 1,784.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.36 : 4,705.78 = 1,189.08 : x
  2. Step 2: Convert to fraction form
    3,136.36/4,705.78 = 1,189.08/x
  3. Step 3: Cross multiply
    3,136.36x = 4,705.78 × 1,189.08
  4. Step 4: Simplify right side
    3,136.36x = 5,595,548.88
  5. Step 5: Solve for x
    x = 5,595,548.88/3,136.36
  6. Step 6: Final answer
    x = 1,784.09

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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.