Home / 3,889.04-5,367.13-2,947.68

Finding the Fourth Proportional to 3,889.04, 5,367.13 and 2,947.68

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Solution

The fourth proportional to 3,889.04, 5,367.13 and 2,947.68 is: 4,067.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.04 : 5,367.13 = 2,947.68 : x
  2. Step 2: Convert to fraction form
    3,889.04/5,367.13 = 2,947.68/x
  3. Step 3: Cross multiply
    3,889.04x = 5,367.13 × 2,947.68
  4. Step 4: Simplify right side
    3,889.04x = 15,820,574.39
  5. Step 5: Solve for x
    x = 15,820,574.39/3,889.04
  6. Step 6: Final answer
    x = 4,067.99

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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.