Home / 5,118.36-7,062.76-2,881

Finding the Fourth Proportional to 5,118.36, 7,062.76 and 2,881

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Solution

The fourth proportional to 5,118.36, 7,062.76 and 2,881 is: 3,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.36 : 7,062.76 = 2,881 : x
  2. Step 2: Convert to fraction form
    5,118.36/7,062.76 = 2,881/x
  3. Step 3: Cross multiply
    5,118.36x = 7,062.76 × 2,881
  4. Step 4: Simplify right side
    5,118.36x = 20,347,811.56
  5. Step 5: Solve for x
    x = 20,347,811.56/5,118.36
  6. Step 6: Final answer
    x = 3,975.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.