Home / 2,728.65-4,095.09-1,803.90

Finding the Fourth Proportional to 2,728.65, 4,095.09 and 1,803.90

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Solution

The fourth proportional to 2,728.65, 4,095.09 and 1,803.90 is: 2,707.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.65 : 4,095.09 = 1,803.90 : x
  2. Step 2: Convert to fraction form
    2,728.65/4,095.09 = 1,803.90/x
  3. Step 3: Cross multiply
    2,728.65x = 4,095.09 × 1,803.90
  4. Step 4: Simplify right side
    2,728.65x = 7,387,132.85
  5. Step 5: Solve for x
    x = 7,387,132.85/2,728.65
  6. Step 6: Final answer
    x = 2,707.25

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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.