Home / 2,678.06-4,025.28-2,620.64

Finding the Fourth Proportional to 2,678.06, 4,025.28 and 2,620.64

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Solution

The fourth proportional to 2,678.06, 4,025.28 and 2,620.64 is: 3,938.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.06 : 4,025.28 = 2,620.64 : x
  2. Step 2: Convert to fraction form
    2,678.06/4,025.28 = 2,620.64/x
  3. Step 3: Cross multiply
    2,678.06x = 4,025.28 × 2,620.64
  4. Step 4: Simplify right side
    2,678.06x = 10,548,809.78
  5. Step 5: Solve for x
    x = 10,548,809.78/2,678.06
  6. Step 6: Final answer
    x = 3,938.97

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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.