Home / 3,779.40-5,204.82-2,729.80

Finding the Fourth Proportional to 3,779.40, 5,204.82 and 2,729.80

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Solution

The fourth proportional to 3,779.40, 5,204.82 and 2,729.80 is: 3,759.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.40 : 5,204.82 = 2,729.80 : x
  2. Step 2: Convert to fraction form
    3,779.40/5,204.82 = 2,729.80/x
  3. Step 3: Cross multiply
    3,779.40x = 5,204.82 × 2,729.80
  4. Step 4: Simplify right side
    3,779.40x = 14,208,117.64
  5. Step 5: Solve for x
    x = 14,208,117.64/3,779.40
  6. Step 6: Final answer
    x = 3,759.36

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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.