Home / 3,960.77-5,465.98-2,192.49

Finding the Fourth Proportional to 3,960.77, 5,465.98 and 2,192.49

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Solution

The fourth proportional to 3,960.77, 5,465.98 and 2,192.49 is: 3,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.77 : 5,465.98 = 2,192.49 : x
  2. Step 2: Convert to fraction form
    3,960.77/5,465.98 = 2,192.49/x
  3. Step 3: Cross multiply
    3,960.77x = 5,465.98 × 2,192.49
  4. Step 4: Simplify right side
    3,960.77x = 11,984,124.60
  5. Step 5: Solve for x
    x = 11,984,124.60/3,960.77
  6. Step 6: Final answer
    x = 3,025.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.