Home / 2,716.42-4,075.26-867.28

Finding the Fourth Proportional to 2,716.42, 4,075.26 and 867.28

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Solution

The fourth proportional to 2,716.42, 4,075.26 and 867.28 is: 1,301.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.42 : 4,075.26 = 867.28 : x
  2. Step 2: Convert to fraction form
    2,716.42/4,075.26 = 867.28/x
  3. Step 3: Cross multiply
    2,716.42x = 4,075.26 × 867.28
  4. Step 4: Simplify right side
    2,716.42x = 3,534,391.49
  5. Step 5: Solve for x
    x = 3,534,391.49/2,716.42
  6. Step 6: Final answer
    x = 1,301.12

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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.