Home / 3,255.79-4,494.90-2,138.67

Finding the Fourth Proportional to 3,255.79, 4,494.90 and 2,138.67

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Solution

The fourth proportional to 3,255.79, 4,494.90 and 2,138.67 is: 2,952.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.79 : 4,494.90 = 2,138.67 : x
  2. Step 2: Convert to fraction form
    3,255.79/4,494.90 = 2,138.67/x
  3. Step 3: Cross multiply
    3,255.79x = 4,494.90 × 2,138.67
  4. Step 4: Simplify right side
    3,255.79x = 9,613,132.66
  5. Step 5: Solve for x
    x = 9,613,132.66/3,255.79
  6. Step 6: Final answer
    x = 2,952.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.