Home / 5,585.90-8,379.92-2,122.88

Finding the Fourth Proportional to 5,585.90, 8,379.92 and 2,122.88

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Solution

The fourth proportional to 5,585.90, 8,379.92 and 2,122.88 is: 3,184.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.90 : 8,379.92 = 2,122.88 : x
  2. Step 2: Convert to fraction form
    5,585.90/8,379.92 = 2,122.88/x
  3. Step 3: Cross multiply
    5,585.90x = 8,379.92 × 2,122.88
  4. Step 4: Simplify right side
    5,585.90x = 17,789,527.98
  5. Step 5: Solve for x
    x = 17,789,527.98/5,585.90
  6. Step 6: Final answer
    x = 3,184.72

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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.