Home / 3,812.84-5,719.48-1,215.98

Finding the Fourth Proportional to 3,812.84, 5,719.48 and 1,215.98

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Solution

The fourth proportional to 3,812.84, 5,719.48 and 1,215.98 is: 1,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.84 : 5,719.48 = 1,215.98 : x
  2. Step 2: Convert to fraction form
    3,812.84/5,719.48 = 1,215.98/x
  3. Step 3: Cross multiply
    3,812.84x = 5,719.48 × 1,215.98
  4. Step 4: Simplify right side
    3,812.84x = 6,954,773.29
  5. Step 5: Solve for x
    x = 6,954,773.29/3,812.84
  6. Step 6: Final answer
    x = 1,824.04

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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.