Home / 2,016.81-2,786.36-1,985.85

Finding the Fourth Proportional to 2,016.81, 2,786.36 and 1,985.85

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Solution

The fourth proportional to 2,016.81, 2,786.36 and 1,985.85 is: 2,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,016.81 : 2,786.36 = 1,985.85 : x
  2. Step 2: Convert to fraction form
    2,016.81/2,786.36 = 1,985.85/x
  3. Step 3: Cross multiply
    2,016.81x = 2,786.36 × 1,985.85
  4. Step 4: Simplify right side
    2,016.81x = 5,533,283.08
  5. Step 5: Solve for x
    x = 5,533,283.08/2,016.81
  6. Step 6: Final answer
    x = 2,743.58

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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.