Home / 2,716.80-4,075.23-867.90

Finding the Fourth Proportional to 2,716.80, 4,075.23 and 867.90

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Solution

The fourth proportional to 2,716.80, 4,075.23 and 867.90 is: 1,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.80 : 4,075.23 = 867.90 : x
  2. Step 2: Convert to fraction form
    2,716.80/4,075.23 = 867.90/x
  3. Step 3: Cross multiply
    2,716.80x = 4,075.23 × 867.90
  4. Step 4: Simplify right side
    2,716.80x = 3,536,892.12
  5. Step 5: Solve for x
    x = 3,536,892.12/2,716.80
  6. Step 6: Final answer
    x = 1,301.86

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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.