Home / 1,816.02-2,723.45-1,121.65

Finding the Fourth Proportional to 1,816.02, 2,723.45 and 1,121.65

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Solution

The fourth proportional to 1,816.02, 2,723.45 and 1,121.65 is: 1,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.02 : 2,723.45 = 1,121.65 : x
  2. Step 2: Convert to fraction form
    1,816.02/2,723.45 = 1,121.65/x
  3. Step 3: Cross multiply
    1,816.02x = 2,723.45 × 1,121.65
  4. Step 4: Simplify right side
    1,816.02x = 3,054,757.69
  5. Step 5: Solve for x
    x = 3,054,757.69/1,816.02
  6. Step 6: Final answer
    x = 1,682.12

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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.