Home / 6,108.20-8,428.74-3,749.96

Finding the Fourth Proportional to 6,108.20, 8,428.74 and 3,749.96

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Solution

The fourth proportional to 6,108.20, 8,428.74 and 3,749.96 is: 5,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,108.20 : 8,428.74 = 3,749.96 : x
  2. Step 2: Convert to fraction form
    6,108.20/8,428.74 = 3,749.96/x
  3. Step 3: Cross multiply
    6,108.20x = 8,428.74 × 3,749.96
  4. Step 4: Simplify right side
    6,108.20x = 31,607,437.85
  5. Step 5: Solve for x
    x = 31,607,437.85/6,108.20
  6. Step 6: Final answer
    x = 5,174.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.