Home / 4,350.75-6,520.65-3,120.56

Finding the Fourth Proportional to 4,350.75, 6,520.65 and 3,120.56

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Solution

The fourth proportional to 4,350.75, 6,520.65 and 3,120.56 is: 4,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,350.75 : 6,520.65 = 3,120.56 : x
  2. Step 2: Convert to fraction form
    4,350.75/6,520.65 = 3,120.56/x
  3. Step 3: Cross multiply
    4,350.75x = 6,520.65 × 3,120.56
  4. Step 4: Simplify right side
    4,350.75x = 20,348,095.87
  5. Step 5: Solve for x
    x = 20,348,095.87/4,350.75
  6. Step 6: Final answer
    x = 4,676.92

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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.