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Finding the Fourth Proportional to 2,779.41, 3,833.91 and 1,835.21

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Solution

The fourth proportional to 2,779.41, 3,833.91 and 1,835.21 is: 2,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.41 : 3,833.91 = 1,835.21 : x
  2. Step 2: Convert to fraction form
    2,779.41/3,833.91 = 1,835.21/x
  3. Step 3: Cross multiply
    2,779.41x = 3,833.91 × 1,835.21
  4. Step 4: Simplify right side
    2,779.41x = 7,036,010.80
  5. Step 5: Solve for x
    x = 7,036,010.80/2,779.41
  6. Step 6: Final answer
    x = 2,531.48

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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.