Home / 2,136.16-3,203.24-1,185.70

Finding the Fourth Proportional to 2,136.16, 3,203.24 and 1,185.70

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Solution

The fourth proportional to 2,136.16, 3,203.24 and 1,185.70 is: 1,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.16 : 3,203.24 = 1,185.70 : x
  2. Step 2: Convert to fraction form
    2,136.16/3,203.24 = 1,185.70/x
  3. Step 3: Cross multiply
    2,136.16x = 3,203.24 × 1,185.70
  4. Step 4: Simplify right side
    2,136.16x = 3,798,081.67
  5. Step 5: Solve for x
    x = 3,798,081.67/2,136.16
  6. Step 6: Final answer
    x = 1,777.99

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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.