Home / 5,821.14-8,731.74-1,661.16

Finding the Fourth Proportional to 5,821.14, 8,731.74 and 1,661.16

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Solution

The fourth proportional to 5,821.14, 8,731.74 and 1,661.16 is: 2,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.14 : 8,731.74 = 1,661.16 : x
  2. Step 2: Convert to fraction form
    5,821.14/8,731.74 = 1,661.16/x
  3. Step 3: Cross multiply
    5,821.14x = 8,731.74 × 1,661.16
  4. Step 4: Simplify right side
    5,821.14x = 14,504,817.22
  5. Step 5: Solve for x
    x = 14,504,817.22/5,821.14
  6. Step 6: Final answer
    x = 2,491.75

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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.