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Finding the Fourth Proportional to 2,620.56, 3,932.19 and 2,600.58

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Solution

The fourth proportional to 2,620.56, 3,932.19 and 2,600.58 is: 3,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.56 : 3,932.19 = 2,600.58 : x
  2. Step 2: Convert to fraction form
    2,620.56/3,932.19 = 2,600.58/x
  3. Step 3: Cross multiply
    2,620.56x = 3,932.19 × 2,600.58
  4. Step 4: Simplify right side
    2,620.56x = 10,225,974.67
  5. Step 5: Solve for x
    x = 10,225,974.67/2,620.56
  6. Step 6: Final answer
    x = 3,902.21

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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.