Home / 2,085.99-2,878.67-1,201.97

Finding the Fourth Proportional to 2,085.99, 2,878.67 and 1,201.97

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Solution

The fourth proportional to 2,085.99, 2,878.67 and 1,201.97 is: 1,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.99 : 2,878.67 = 1,201.97 : x
  2. Step 2: Convert to fraction form
    2,085.99/2,878.67 = 1,201.97/x
  3. Step 3: Cross multiply
    2,085.99x = 2,878.67 × 1,201.97
  4. Step 4: Simplify right side
    2,085.99x = 3,460,054.58
  5. Step 5: Solve for x
    x = 3,460,054.58/2,085.99
  6. Step 6: Final answer
    x = 1,658.71

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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.