Home / 2,816.47-4,225.42-1,172.68

Finding the Fourth Proportional to 2,816.47, 4,225.42 and 1,172.68

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Solution

The fourth proportional to 2,816.47, 4,225.42 and 1,172.68 is: 1,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.47 : 4,225.42 = 1,172.68 : x
  2. Step 2: Convert to fraction form
    2,816.47/4,225.42 = 1,172.68/x
  3. Step 3: Cross multiply
    2,816.47x = 4,225.42 × 1,172.68
  4. Step 4: Simplify right side
    2,816.47x = 4,955,049.83
  5. Step 5: Solve for x
    x = 4,955,049.83/2,816.47
  6. Step 6: Final answer
    x = 1,759.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.