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Finding the Fourth Proportional to 2,779.58, 3,835.82 and 1,520.62

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Solution

The fourth proportional to 2,779.58, 3,835.82 and 1,520.62 is: 2,098.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.58 : 3,835.82 = 1,520.62 : x
  2. Step 2: Convert to fraction form
    2,779.58/3,835.82 = 1,520.62/x
  3. Step 3: Cross multiply
    2,779.58x = 3,835.82 × 1,520.62
  4. Step 4: Simplify right side
    2,779.58x = 5,832,824.61
  5. Step 5: Solve for x
    x = 5,832,824.61/2,779.58
  6. Step 6: Final answer
    x = 2,098.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.