Home / 2,518.96-3,779.71-1,906.45

Finding the Fourth Proportional to 2,518.96, 3,779.71 and 1,906.45

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Solution

The fourth proportional to 2,518.96, 3,779.71 and 1,906.45 is: 2,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.96 : 3,779.71 = 1,906.45 : x
  2. Step 2: Convert to fraction form
    2,518.96/3,779.71 = 1,906.45/x
  3. Step 3: Cross multiply
    2,518.96x = 3,779.71 × 1,906.45
  4. Step 4: Simplify right side
    2,518.96x = 7,205,829.95
  5. Step 5: Solve for x
    x = 7,205,829.95/2,518.96
  6. Step 6: Final answer
    x = 2,860.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.