Home / 3,205.26-4,421.60-1,808.10

Finding the Fourth Proportional to 3,205.26, 4,421.60 and 1,808.10

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Solution

The fourth proportional to 3,205.26, 4,421.60 and 1,808.10 is: 2,494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.26 : 4,421.60 = 1,808.10 : x
  2. Step 2: Convert to fraction form
    3,205.26/4,421.60 = 1,808.10/x
  3. Step 3: Cross multiply
    3,205.26x = 4,421.60 × 1,808.10
  4. Step 4: Simplify right side
    3,205.26x = 7,994,694.96
  5. Step 5: Solve for x
    x = 7,994,694.96/3,205.26
  6. Step 6: Final answer
    x = 2,494.24

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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.