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Finding the Fourth Proportional to 5,859, 8,790.66 and 3,085.56

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Solution

The fourth proportional to 5,859, 8,790.66 and 3,085.56 is: 4,629.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859 : 8,790.66 = 3,085.56 : x
  2. Step 2: Convert to fraction form
    5,859/8,790.66 = 3,085.56/x
  3. Step 3: Cross multiply
    5,859x = 8,790.66 × 3,085.56
  4. Step 4: Simplify right side
    5,859x = 27,124,108.87
  5. Step 5: Solve for x
    x = 27,124,108.87/5,859
  6. Step 6: Final answer
    x = 4,629.48

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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.