Home / 5,416.60-8,105.70-3,765.40

Finding the Fourth Proportional to 5,416.60, 8,105.70 and 3,765.40

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Solution

The fourth proportional to 5,416.60, 8,105.70 and 3,765.40 is: 5,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.60 : 8,105.70 = 3,765.40 : x
  2. Step 2: Convert to fraction form
    5,416.60/8,105.70 = 3,765.40/x
  3. Step 3: Cross multiply
    5,416.60x = 8,105.70 × 3,765.40
  4. Step 4: Simplify right side
    5,416.60x = 30,521,202.78
  5. Step 5: Solve for x
    x = 30,521,202.78/5,416.60
  6. Step 6: Final answer
    x = 5,634.75

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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.