Home / 2,611.22-3,918.40-1,051.56

Finding the Fourth Proportional to 2,611.22, 3,918.40 and 1,051.56

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Solution

The fourth proportional to 2,611.22, 3,918.40 and 1,051.56 is: 1,577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.22 : 3,918.40 = 1,051.56 : x
  2. Step 2: Convert to fraction form
    2,611.22/3,918.40 = 1,051.56/x
  3. Step 3: Cross multiply
    2,611.22x = 3,918.40 × 1,051.56
  4. Step 4: Simplify right side
    2,611.22x = 4,120,432.70
  5. Step 5: Solve for x
    x = 4,120,432.70/2,611.22
  6. Step 6: Final answer
    x = 1,577.97

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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.