Home / 5,679.09-8,512.34-4,287.92

Finding the Fourth Proportional to 5,679.09, 8,512.34 and 4,287.92

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Solution

The fourth proportional to 5,679.09, 8,512.34 and 4,287.92 is: 6,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.09 : 8,512.34 = 4,287.92 : x
  2. Step 2: Convert to fraction form
    5,679.09/8,512.34 = 4,287.92/x
  3. Step 3: Cross multiply
    5,679.09x = 8,512.34 × 4,287.92
  4. Step 4: Simplify right side
    5,679.09x = 36,500,168.93
  5. Step 5: Solve for x
    x = 36,500,168.93/5,679.09
  6. Step 6: Final answer
    x = 6,427.12

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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.