Home / 3,688.54-5,529.26-1,222.09

Finding the Fourth Proportional to 3,688.54, 5,529.26 and 1,222.09

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Solution

The fourth proportional to 3,688.54, 5,529.26 and 1,222.09 is: 1,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.54 : 5,529.26 = 1,222.09 : x
  2. Step 2: Convert to fraction form
    3,688.54/5,529.26 = 1,222.09/x
  3. Step 3: Cross multiply
    3,688.54x = 5,529.26 × 1,222.09
  4. Step 4: Simplify right side
    3,688.54x = 6,757,242.59
  5. Step 5: Solve for x
    x = 6,757,242.59/3,688.54
  6. Step 6: Final answer
    x = 1,831.96

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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.