Home / 2,716.24-4,075.80-985.36

Finding the Fourth Proportional to 2,716.24, 4,075.80 and 985.36

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Solution

The fourth proportional to 2,716.24, 4,075.80 and 985.36 is: 1,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.24 : 4,075.80 = 985.36 : x
  2. Step 2: Convert to fraction form
    2,716.24/4,075.80 = 985.36/x
  3. Step 3: Cross multiply
    2,716.24x = 4,075.80 × 985.36
  4. Step 4: Simplify right side
    2,716.24x = 4,016,130.29
  5. Step 5: Solve for x
    x = 4,016,130.29/2,716.24
  6. Step 6: Final answer
    x = 1,478.56

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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.