Home / 1,814.80-2,723.58-1,329.12

Finding the Fourth Proportional to 1,814.80, 2,723.58 and 1,329.12

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Solution

The fourth proportional to 1,814.80, 2,723.58 and 1,329.12 is: 1,994.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.80 : 2,723.58 = 1,329.12 : x
  2. Step 2: Convert to fraction form
    1,814.80/2,723.58 = 1,329.12/x
  3. Step 3: Cross multiply
    1,814.80x = 2,723.58 × 1,329.12
  4. Step 4: Simplify right side
    1,814.80x = 3,619,964.65
  5. Step 5: Solve for x
    x = 3,619,964.65/1,814.80
  6. Step 6: Final answer
    x = 1,994.69

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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.