Home / 5,418.08-8,105.76-4,176.08

Finding the Fourth Proportional to 5,418.08, 8,105.76 and 4,176.08

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Solution

The fourth proportional to 5,418.08, 8,105.76 and 4,176.08 is: 6,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.08 : 8,105.76 = 4,176.08 : x
  2. Step 2: Convert to fraction form
    5,418.08/8,105.76 = 4,176.08/x
  3. Step 3: Cross multiply
    5,418.08x = 8,105.76 × 4,176.08
  4. Step 4: Simplify right side
    5,418.08x = 33,850,302.22
  5. Step 5: Solve for x
    x = 33,850,302.22/5,418.08
  6. Step 6: Final answer
    x = 6,247.66

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1.5x scale

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.