Home / 2,585.34-3,878.01-2,199.78

Finding the Fourth Proportional to 2,585.34, 3,878.01 and 2,199.78

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Solution

The fourth proportional to 2,585.34, 3,878.01 and 2,199.78 is: 3,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.34 : 3,878.01 = 2,199.78 : x
  2. Step 2: Convert to fraction form
    2,585.34/3,878.01 = 2,199.78/x
  3. Step 3: Cross multiply
    2,585.34x = 3,878.01 × 2,199.78
  4. Step 4: Simplify right side
    2,585.34x = 8,530,768.84
  5. Step 5: Solve for x
    x = 8,530,768.84/2,585.34
  6. Step 6: Final answer
    x = 3,299.67

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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.