Home / 2,824.40-4,234.02-1,091.72

Finding the Fourth Proportional to 2,824.40, 4,234.02 and 1,091.72

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Solution

The fourth proportional to 2,824.40, 4,234.02 and 1,091.72 is: 1,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.40 : 4,234.02 = 1,091.72 : x
  2. Step 2: Convert to fraction form
    2,824.40/4,234.02 = 1,091.72/x
  3. Step 3: Cross multiply
    2,824.40x = 4,234.02 × 1,091.72
  4. Step 4: Simplify right side
    2,824.40x = 4,622,364.31
  5. Step 5: Solve for x
    x = 4,622,364.31/2,824.40
  6. Step 6: Final answer
    x = 1,636.58

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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.