Home / 5,690.06-8,532.78-1,991.42

Finding the Fourth Proportional to 5,690.06, 8,532.78 and 1,991.42

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Solution

The fourth proportional to 5,690.06, 8,532.78 and 1,991.42 is: 2,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.06 : 8,532.78 = 1,991.42 : x
  2. Step 2: Convert to fraction form
    5,690.06/8,532.78 = 1,991.42/x
  3. Step 3: Cross multiply
    5,690.06x = 8,532.78 × 1,991.42
  4. Step 4: Simplify right side
    5,690.06x = 16,992,306.08
  5. Step 5: Solve for x
    x = 16,992,306.08/5,690.06
  6. Step 6: Final answer
    x = 2,986.32

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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.