Home / 2,751.48-4,127.81-1,289.84

Finding the Fourth Proportional to 2,751.48, 4,127.81 and 1,289.84

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Solution

The fourth proportional to 2,751.48, 4,127.81 and 1,289.84 is: 1,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.48 : 4,127.81 = 1,289.84 : x
  2. Step 2: Convert to fraction form
    2,751.48/4,127.81 = 1,289.84/x
  3. Step 3: Cross multiply
    2,751.48x = 4,127.81 × 1,289.84
  4. Step 4: Simplify right side
    2,751.48x = 5,324,187.36
  5. Step 5: Solve for x
    x = 5,324,187.36/2,751.48
  6. Step 6: Final answer
    x = 1,935.03

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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.