Home / 2,784.26-4,172.76-2,085.44

Finding the Fourth Proportional to 2,784.26, 4,172.76 and 2,085.44

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Solution

The fourth proportional to 2,784.26, 4,172.76 and 2,085.44 is: 3,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.26 : 4,172.76 = 2,085.44 : x
  2. Step 2: Convert to fraction form
    2,784.26/4,172.76 = 2,085.44/x
  3. Step 3: Cross multiply
    2,784.26x = 4,172.76 × 2,085.44
  4. Step 4: Simplify right side
    2,784.26x = 8,702,040.61
  5. Step 5: Solve for x
    x = 8,702,040.61/2,784.26
  6. Step 6: Final answer
    x = 3,125.44

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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.