Home / 2,812.00-4,218.97-1,253.11

Finding the Fourth Proportional to 2,812.00, 4,218.97 and 1,253.11

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Solution

The fourth proportional to 2,812.00, 4,218.97 and 1,253.11 is: 1,880.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.00 : 4,218.97 = 1,253.11 : x
  2. Step 2: Convert to fraction form
    2,812.00/4,218.97 = 1,253.11/x
  3. Step 3: Cross multiply
    2,812.00x = 4,218.97 × 1,253.11
  4. Step 4: Simplify right side
    2,812.00x = 5,286,812.40
  5. Step 5: Solve for x
    x = 5,286,812.40/2,812.00
  6. Step 6: Final answer
    x = 1,880.09

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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.