Home / 2,211.54-3,051.48-1,315.26

Finding the Fourth Proportional to 2,211.54, 3,051.48 and 1,315.26

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Solution

The fourth proportional to 2,211.54, 3,051.48 and 1,315.26 is: 1,814.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.54 : 3,051.48 = 1,315.26 : x
  2. Step 2: Convert to fraction form
    2,211.54/3,051.48 = 1,315.26/x
  3. Step 3: Cross multiply
    2,211.54x = 3,051.48 × 1,315.26
  4. Step 4: Simplify right side
    2,211.54x = 4,013,489.58
  5. Step 5: Solve for x
    x = 4,013,489.58/2,211.54
  6. Step 6: Final answer
    x = 1,814.79

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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.