Home / 5,418.91-8,081.35-4,894.03

Finding the Fourth Proportional to 5,418.91, 8,081.35 and 4,894.03

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Solution

The fourth proportional to 5,418.91, 8,081.35 and 4,894.03 is: 7,298.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.91 : 8,081.35 = 4,894.03 : x
  2. Step 2: Convert to fraction form
    5,418.91/8,081.35 = 4,894.03/x
  3. Step 3: Cross multiply
    5,418.91x = 8,081.35 × 4,894.03
  4. Step 4: Simplify right side
    5,418.91x = 39,550,369.34
  5. Step 5: Solve for x
    x = 39,550,369.34/5,418.91
  6. Step 6: Final answer
    x = 7,298.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.