Home / 4,820-7,215.92-2,965.48

Finding the Fourth Proportional to 4,820, 7,215.92 and 2,965.48

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Solution

The fourth proportional to 4,820, 7,215.92 and 2,965.48 is: 4,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820 : 7,215.92 = 2,965.48 : x
  2. Step 2: Convert to fraction form
    4,820/7,215.92 = 2,965.48/x
  3. Step 3: Cross multiply
    4,820x = 7,215.92 × 2,965.48
  4. Step 4: Simplify right side
    4,820x = 21,398,666.44
  5. Step 5: Solve for x
    x = 21,398,666.44/4,820
  6. Step 6: Final answer
    x = 4,439.56

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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.