Home / 3,779.16-5,215.44-2,185.89

Finding the Fourth Proportional to 3,779.16, 5,215.44 and 2,185.89

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Solution

The fourth proportional to 3,779.16, 5,215.44 and 2,185.89 is: 3,016.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.16 : 5,215.44 = 2,185.89 : x
  2. Step 2: Convert to fraction form
    3,779.16/5,215.44 = 2,185.89/x
  3. Step 3: Cross multiply
    3,779.16x = 5,215.44 × 2,185.89
  4. Step 4: Simplify right side
    3,779.16x = 11,400,354.49
  5. Step 5: Solve for x
    x = 11,400,354.49/3,779.16
  6. Step 6: Final answer
    x = 3,016.64

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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.