Home / 3,256.11-4,879.95-2,085.66

Finding the Fourth Proportional to 3,256.11, 4,879.95 and 2,085.66

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Solution

The fourth proportional to 3,256.11, 4,879.95 and 2,085.66 is: 3,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.11 : 4,879.95 = 2,085.66 : x
  2. Step 2: Convert to fraction form
    3,256.11/4,879.95 = 2,085.66/x
  3. Step 3: Cross multiply
    3,256.11x = 4,879.95 × 2,085.66
  4. Step 4: Simplify right side
    3,256.11x = 10,177,916.52
  5. Step 5: Solve for x
    x = 10,177,916.52/3,256.11
  6. Step 6: Final answer
    x = 3,125.79

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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.