Home / 2,211.54-3,050.91-1,279.50

Finding the Fourth Proportional to 2,211.54, 3,050.91 and 1,279.50

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Solution

The fourth proportional to 2,211.54, 3,050.91 and 1,279.50 is: 1,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.54 : 3,050.91 = 1,279.50 : x
  2. Step 2: Convert to fraction form
    2,211.54/3,050.91 = 1,279.50/x
  3. Step 3: Cross multiply
    2,211.54x = 3,050.91 × 1,279.50
  4. Step 4: Simplify right side
    2,211.54x = 3,903,639.35
  5. Step 5: Solve for x
    x = 3,903,639.35/2,211.54
  6. Step 6: Final answer
    x = 1,765.12

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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.