Home / 4,679.08-6,457.26-2,815

Finding the Fourth Proportional to 4,679.08, 6,457.26 and 2,815

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Solution

The fourth proportional to 4,679.08, 6,457.26 and 2,815 is: 3,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.08 : 6,457.26 = 2,815 : x
  2. Step 2: Convert to fraction form
    4,679.08/6,457.26 = 2,815/x
  3. Step 3: Cross multiply
    4,679.08x = 6,457.26 × 2,815
  4. Step 4: Simplify right side
    4,679.08x = 18,177,186.90
  5. Step 5: Solve for x
    x = 18,177,186.90/4,679.08
  6. Step 6: Final answer
    x = 3,884.78

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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.