Home / 5,204.50-7,806.75-2,085.91

Finding the Fourth Proportional to 5,204.50, 7,806.75 and 2,085.91

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Solution

The fourth proportional to 5,204.50, 7,806.75 and 2,085.91 is: 3,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,204.50 : 7,806.75 = 2,085.91 : x
  2. Step 2: Convert to fraction form
    5,204.50/7,806.75 = 2,085.91/x
  3. Step 3: Cross multiply
    5,204.50x = 7,806.75 × 2,085.91
  4. Step 4: Simplify right side
    5,204.50x = 16,284,177.89
  5. Step 5: Solve for x
    x = 16,284,177.89/5,204.50
  6. Step 6: Final answer
    x = 3,128.87

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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.