Home / 3,880.80-5,814.72-2,724.48

Finding the Fourth Proportional to 3,880.80, 5,814.72 and 2,724.48

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Solution

The fourth proportional to 3,880.80, 5,814.72 and 2,724.48 is: 4,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.80 : 5,814.72 = 2,724.48 : x
  2. Step 2: Convert to fraction form
    3,880.80/5,814.72 = 2,724.48/x
  3. Step 3: Cross multiply
    3,880.80x = 5,814.72 × 2,724.48
  4. Step 4: Simplify right side
    3,880.80x = 15,842,088.35
  5. Step 5: Solve for x
    x = 15,842,088.35/3,880.80
  6. Step 6: Final answer
    x = 4,082.17

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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.