Home / 3,960.42-5,940.60-1,038.68

Finding the Fourth Proportional to 3,960.42, 5,940.60 and 1,038.68

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Solution

The fourth proportional to 3,960.42, 5,940.60 and 1,038.68 is: 1,558.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.42 : 5,940.60 = 1,038.68 : x
  2. Step 2: Convert to fraction form
    3,960.42/5,940.60 = 1,038.68/x
  3. Step 3: Cross multiply
    3,960.42x = 5,940.60 × 1,038.68
  4. Step 4: Simplify right side
    3,960.42x = 6,170,382.41
  5. Step 5: Solve for x
    x = 6,170,382.41/3,960.42
  6. Step 6: Final answer
    x = 1,558.01

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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.