Home / 2,211.25-3,051.74-1,267.11

Finding the Fourth Proportional to 2,211.25, 3,051.74 and 1,267.11

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Solution

The fourth proportional to 2,211.25, 3,051.74 and 1,267.11 is: 1,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.25 : 3,051.74 = 1,267.11 : x
  2. Step 2: Convert to fraction form
    2,211.25/3,051.74 = 1,267.11/x
  3. Step 3: Cross multiply
    2,211.25x = 3,051.74 × 1,267.11
  4. Step 4: Simplify right side
    2,211.25x = 3,866,890.27
  5. Step 5: Solve for x
    x = 3,866,890.27/2,211.25
  6. Step 6: Final answer
    x = 1,748.74

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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.