Home / 2,638.75-3,956.19-1,526.60

Finding the Fourth Proportional to 2,638.75, 3,956.19 and 1,526.60

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Solution

The fourth proportional to 2,638.75, 3,956.19 and 1,526.60 is: 2,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.75 : 3,956.19 = 1,526.60 : x
  2. Step 2: Convert to fraction form
    2,638.75/3,956.19 = 1,526.60/x
  3. Step 3: Cross multiply
    2,638.75x = 3,956.19 × 1,526.60
  4. Step 4: Simplify right side
    2,638.75x = 6,039,519.65
  5. Step 5: Solve for x
    x = 6,039,519.65/2,638.75
  6. Step 6: Final answer
    x = 2,288.78

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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.