Home / 4,722.80-7,067.40-4,113.20

Finding the Fourth Proportional to 4,722.80, 7,067.40 and 4,113.20

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Solution

The fourth proportional to 4,722.80, 7,067.40 and 4,113.20 is: 6,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.80 : 7,067.40 = 4,113.20 : x
  2. Step 2: Convert to fraction form
    4,722.80/7,067.40 = 4,113.20/x
  3. Step 3: Cross multiply
    4,722.80x = 7,067.40 × 4,113.20
  4. Step 4: Simplify right side
    4,722.80x = 29,069,629.68
  5. Step 5: Solve for x
    x = 29,069,629.68/4,722.80
  6. Step 6: Final answer
    x = 6,155.17

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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.