Home / 5,378.49-8,059.88-3,821.51

Finding the Fourth Proportional to 5,378.49, 8,059.88 and 3,821.51

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Solution

The fourth proportional to 5,378.49, 8,059.88 and 3,821.51 is: 5,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.49 : 8,059.88 = 3,821.51 : x
  2. Step 2: Convert to fraction form
    5,378.49/8,059.88 = 3,821.51/x
  3. Step 3: Cross multiply
    5,378.49x = 8,059.88 × 3,821.51
  4. Step 4: Simplify right side
    5,378.49x = 30,800,941.72
  5. Step 5: Solve for x
    x = 30,800,941.72/5,378.49
  6. Step 6: Final answer
    x = 5,726.69

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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.