Home / 3,478.37-5,217.96-1,138.55

Finding the Fourth Proportional to 3,478.37, 5,217.96 and 1,138.55

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Solution

The fourth proportional to 3,478.37, 5,217.96 and 1,138.55 is: 1,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.37 : 5,217.96 = 1,138.55 : x
  2. Step 2: Convert to fraction form
    3,478.37/5,217.96 = 1,138.55/x
  3. Step 3: Cross multiply
    3,478.37x = 5,217.96 × 1,138.55
  4. Step 4: Simplify right side
    3,478.37x = 5,940,908.36
  5. Step 5: Solve for x
    x = 5,940,908.36/3,478.37
  6. Step 6: Final answer
    x = 1,707.96

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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.