Home / 3,960.60-5,940.90-2,316.30

Finding the Fourth Proportional to 3,960.60, 5,940.90 and 2,316.30

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Solution

The fourth proportional to 3,960.60, 5,940.90 and 2,316.30 is: 3,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.60 : 5,940.90 = 2,316.30 : x
  2. Step 2: Convert to fraction form
    3,960.60/5,940.90 = 2,316.30/x
  3. Step 3: Cross multiply
    3,960.60x = 5,940.90 × 2,316.30
  4. Step 4: Simplify right side
    3,960.60x = 13,760,906.67
  5. Step 5: Solve for x
    x = 13,760,906.67/3,960.60
  6. Step 6: Final answer
    x = 3,474.45

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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.