Home / 5,619.84-8,429.75-3,122.61

Finding the Fourth Proportional to 5,619.84, 8,429.75 and 3,122.61

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Solution

The fourth proportional to 5,619.84, 8,429.75 and 3,122.61 is: 4,683.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.84 : 8,429.75 = 3,122.61 : x
  2. Step 2: Convert to fraction form
    5,619.84/8,429.75 = 3,122.61/x
  3. Step 3: Cross multiply
    5,619.84x = 8,429.75 × 3,122.61
  4. Step 4: Simplify right side
    5,619.84x = 26,322,821.65
  5. Step 5: Solve for x
    x = 26,322,821.65/5,619.84
  6. Step 6: Final answer
    x = 4,683.91

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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.