Home / 5,817.80-8,724.36-2,119.16

Finding the Fourth Proportional to 5,817.80, 8,724.36 and 2,119.16

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Solution

The fourth proportional to 5,817.80, 8,724.36 and 2,119.16 is: 3,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.80 : 8,724.36 = 2,119.16 : x
  2. Step 2: Convert to fraction form
    5,817.80/8,724.36 = 2,119.16/x
  3. Step 3: Cross multiply
    5,817.80x = 8,724.36 × 2,119.16
  4. Step 4: Simplify right side
    5,817.80x = 18,488,314.74
  5. Step 5: Solve for x
    x = 18,488,314.74/5,817.80
  6. Step 6: Final answer
    x = 3,177.89

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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.