Home / 1,975.39-2,725.99-1,136.09

Finding the Fourth Proportional to 1,975.39, 2,725.99 and 1,136.09

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Solution

The fourth proportional to 1,975.39, 2,725.99 and 1,136.09 is: 1,567.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.39 : 2,725.99 = 1,136.09 : x
  2. Step 2: Convert to fraction form
    1,975.39/2,725.99 = 1,136.09/x
  3. Step 3: Cross multiply
    1,975.39x = 2,725.99 × 1,136.09
  4. Step 4: Simplify right side
    1,975.39x = 3,096,973.95
  5. Step 5: Solve for x
    x = 3,096,973.95/1,975.39
  6. Step 6: Final answer
    x = 1,567.78

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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.