Home / 3,943.92-5,444.81-2,880.63

Finding the Fourth Proportional to 3,943.92, 5,444.81 and 2,880.63

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Solution

The fourth proportional to 3,943.92, 5,444.81 and 2,880.63 is: 3,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.92 : 5,444.81 = 2,880.63 : x
  2. Step 2: Convert to fraction form
    3,943.92/5,444.81 = 2,880.63/x
  3. Step 3: Cross multiply
    3,943.92x = 5,444.81 × 2,880.63
  4. Step 4: Simplify right side
    3,943.92x = 15,684,468.63
  5. Step 5: Solve for x
    x = 15,684,468.63/3,943.92
  6. Step 6: Final answer
    x = 3,976.87

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1.5x scale

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.