Home / 3,205.06-4,421.64-2,085.64

Finding the Fourth Proportional to 3,205.06, 4,421.64 and 2,085.64

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Solution

The fourth proportional to 3,205.06, 4,421.64 and 2,085.64 is: 2,877.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.06 : 4,421.64 = 2,085.64 : x
  2. Step 2: Convert to fraction form
    3,205.06/4,421.64 = 2,085.64/x
  3. Step 3: Cross multiply
    3,205.06x = 4,421.64 × 2,085.64
  4. Step 4: Simplify right side
    3,205.06x = 9,221,949.25
  5. Step 5: Solve for x
    x = 9,221,949.25/3,205.06
  6. Step 6: Final answer
    x = 2,877.31

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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.