Home / 6,716.80-10,075.28-1,786.72

Finding the Fourth Proportional to 6,716.80, 10,075.28 and 1,786.72

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Solution

The fourth proportional to 6,716.80, 10,075.28 and 1,786.72 is: 2,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,716.80 : 10,075.28 = 1,786.72 : x
  2. Step 2: Convert to fraction form
    6,716.80/10,075.28 = 1,786.72/x
  3. Step 3: Cross multiply
    6,716.80x = 10,075.28 × 1,786.72
  4. Step 4: Simplify right side
    6,716.80x = 18,001,704.28
  5. Step 5: Solve for x
    x = 18,001,704.28/6,716.80
  6. Step 6: Final answer
    x = 2,680.10

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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.