Home / 4,879.15-7,316.03-2,105.35

Finding the Fourth Proportional to 4,879.15, 7,316.03 and 2,105.35

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Solution

The fourth proportional to 4,879.15, 7,316.03 and 2,105.35 is: 3,156.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.15 : 7,316.03 = 2,105.35 : x
  2. Step 2: Convert to fraction form
    4,879.15/7,316.03 = 2,105.35/x
  3. Step 3: Cross multiply
    4,879.15x = 7,316.03 × 2,105.35
  4. Step 4: Simplify right side
    4,879.15x = 15,402,793.23
  5. Step 5: Solve for x
    x = 15,402,793.23/4,879.15
  6. Step 6: Final answer
    x = 3,156.86

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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.