Home / 4,080.72-6,123.81-2,620.90

Finding the Fourth Proportional to 4,080.72, 6,123.81 and 2,620.90

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Solution

The fourth proportional to 4,080.72, 6,123.81 and 2,620.90 is: 3,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.72 : 6,123.81 = 2,620.90 : x
  2. Step 2: Convert to fraction form
    4,080.72/6,123.81 = 2,620.90/x
  3. Step 3: Cross multiply
    4,080.72x = 6,123.81 × 2,620.90
  4. Step 4: Simplify right side
    4,080.72x = 16,049,876.67
  5. Step 5: Solve for x
    x = 16,049,876.67/4,080.72
  6. Step 6: Final answer
    x = 3,933.10

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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.