Home / 6,105.20-8,425.34-3,453

Finding the Fourth Proportional to 6,105.20, 8,425.34 and 3,453

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Solution

The fourth proportional to 6,105.20, 8,425.34 and 3,453 is: 4,765.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,105.20 : 8,425.34 = 3,453 : x
  2. Step 2: Convert to fraction form
    6,105.20/8,425.34 = 3,453/x
  3. Step 3: Cross multiply
    6,105.20x = 8,425.34 × 3,453
  4. Step 4: Simplify right side
    6,105.20x = 29,092,681.76
  5. Step 5: Solve for x
    x = 29,092,681.76/6,105.20
  6. Step 6: Final answer
    x = 4,765.23

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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.