Home / 7,165.16-10,741.64-2,720.34

Finding the Fourth Proportional to 7,165.16, 10,741.64 and 2,720.34

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Solution

The fourth proportional to 7,165.16, 10,741.64 and 2,720.34 is: 4,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.16 : 10,741.64 = 2,720.34 : x
  2. Step 2: Convert to fraction form
    7,165.16/10,741.64 = 2,720.34/x
  3. Step 3: Cross multiply
    7,165.16x = 10,741.64 × 2,720.34
  4. Step 4: Simplify right side
    7,165.16x = 29,220,912.96
  5. Step 5: Solve for x
    x = 29,220,912.96/7,165.16
  6. Step 6: Final answer
    x = 4,078.19

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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.