Home / 1,313.33-1,811.09-1,018.49

Finding the Fourth Proportional to 1,313.33, 1,811.09 and 1,018.49

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Solution

The fourth proportional to 1,313.33, 1,811.09 and 1,018.49 is: 1,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.33 : 1,811.09 = 1,018.49 : x
  2. Step 2: Convert to fraction form
    1,313.33/1,811.09 = 1,018.49/x
  3. Step 3: Cross multiply
    1,313.33x = 1,811.09 × 1,018.49
  4. Step 4: Simplify right side
    1,313.33x = 1,844,570.54
  5. Step 5: Solve for x
    x = 1,844,570.54/1,313.33
  6. Step 6: Final answer
    x = 1,404.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.