Home / 2,221.70-3,063.22-1,800.50

Finding the Fourth Proportional to 2,221.70, 3,063.22 and 1,800.50

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Solution

The fourth proportional to 2,221.70, 3,063.22 and 1,800.50 is: 2,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.70 : 3,063.22 = 1,800.50 : x
  2. Step 2: Convert to fraction form
    2,221.70/3,063.22 = 1,800.50/x
  3. Step 3: Cross multiply
    2,221.70x = 3,063.22 × 1,800.50
  4. Step 4: Simplify right side
    2,221.70x = 5,515,307.79
  5. Step 5: Solve for x
    x = 5,515,307.79/2,221.70
  6. Step 6: Final answer
    x = 2,482.48

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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.