Home / 3,688.21-5,532.32-1,222.38

Finding the Fourth Proportional to 3,688.21, 5,532.32 and 1,222.38

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Solution

The fourth proportional to 3,688.21, 5,532.32 and 1,222.38 is: 1,833.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.21 : 5,532.32 = 1,222.38 : x
  2. Step 2: Convert to fraction form
    3,688.21/5,532.32 = 1,222.38/x
  3. Step 3: Cross multiply
    3,688.21x = 5,532.32 × 1,222.38
  4. Step 4: Simplify right side
    3,688.21x = 6,762,597.32
  5. Step 5: Solve for x
    x = 6,762,597.32/3,688.21
  6. Step 6: Final answer
    x = 1,833.57

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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.