Home / 5,418.54-8,128.08-1,523.25

Finding the Fourth Proportional to 5,418.54, 8,128.08 and 1,523.25

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Solution

The fourth proportional to 5,418.54, 8,128.08 and 1,523.25 is: 2,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.54 : 8,128.08 = 1,523.25 : x
  2. Step 2: Convert to fraction form
    5,418.54/8,128.08 = 1,523.25/x
  3. Step 3: Cross multiply
    5,418.54x = 8,128.08 × 1,523.25
  4. Step 4: Simplify right side
    5,418.54x = 12,381,057.22
  5. Step 5: Solve for x
    x = 12,381,057.22/5,418.54
  6. Step 6: Final answer
    x = 2,284.95

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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.