Home / 5,418.56-8,129.20-2,498.92

Finding the Fourth Proportional to 5,418.56, 8,129.20 and 2,498.92

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Solution

The fourth proportional to 5,418.56, 8,129.20 and 2,498.92 is: 3,749.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.56 : 8,129.20 = 2,498.92 : x
  2. Step 2: Convert to fraction form
    5,418.56/8,129.20 = 2,498.92/x
  3. Step 3: Cross multiply
    5,418.56x = 8,129.20 × 2,498.92
  4. Step 4: Simplify right side
    5,418.56x = 20,314,220.46
  5. Step 5: Solve for x
    x = 20,314,220.46/5,418.56
  6. Step 6: Final answer
    x = 3,749.01

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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.