Home / 5,418.60-8,109.18-4,495.92

Finding the Fourth Proportional to 5,418.60, 8,109.18 and 4,495.92

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Solution

The fourth proportional to 5,418.60, 8,109.18 and 4,495.92 is: 6,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.60 : 8,109.18 = 4,495.92 : x
  2. Step 2: Convert to fraction form
    5,418.60/8,109.18 = 4,495.92/x
  3. Step 3: Cross multiply
    5,418.60x = 8,109.18 × 4,495.92
  4. Step 4: Simplify right side
    5,418.60x = 36,458,224.55
  5. Step 5: Solve for x
    x = 36,458,224.55/5,418.60
  6. Step 6: Final answer
    x = 6,728.35

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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.