Home / 2,802.69-4,202.21-1,816.11

Finding the Fourth Proportional to 2,802.69, 4,202.21 and 1,816.11

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Solution

The fourth proportional to 2,802.69, 4,202.21 and 1,816.11 is: 2,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.69 : 4,202.21 = 1,816.11 : x
  2. Step 2: Convert to fraction form
    2,802.69/4,202.21 = 1,816.11/x
  3. Step 3: Cross multiply
    2,802.69x = 4,202.21 × 1,816.11
  4. Step 4: Simplify right side
    2,802.69x = 7,631,680.14
  5. Step 5: Solve for x
    x = 7,631,680.14/2,802.69
  6. Step 6: Final answer
    x = 2,722.98

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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.