Home / 2,126.82-3,184.75-1,200.99

Finding the Fourth Proportional to 2,126.82, 3,184.75 and 1,200.99

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Solution

The fourth proportional to 2,126.82, 3,184.75 and 1,200.99 is: 1,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.82 : 3,184.75 = 1,200.99 : x
  2. Step 2: Convert to fraction form
    2,126.82/3,184.75 = 1,200.99/x
  3. Step 3: Cross multiply
    2,126.82x = 3,184.75 × 1,200.99
  4. Step 4: Simplify right side
    2,126.82x = 3,824,852.90
  5. Step 5: Solve for x
    x = 3,824,852.90/2,126.82
  6. Step 6: Final answer
    x = 1,798.39

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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.