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Finding the Fourth Proportional to 3,960.77, 5,938.21 and 2,400.39

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Solution

The fourth proportional to 3,960.77, 5,938.21 and 2,400.39 is: 3,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.77 : 5,938.21 = 2,400.39 : x
  2. Step 2: Convert to fraction form
    3,960.77/5,938.21 = 2,400.39/x
  3. Step 3: Cross multiply
    3,960.77x = 5,938.21 × 2,400.39
  4. Step 4: Simplify right side
    3,960.77x = 14,254,022.90
  5. Step 5: Solve for x
    x = 14,254,022.90/3,960.77
  6. Step 6: Final answer
    x = 3,598.80

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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.