Home / 5,780.14-7,976.46-3,422.32

Finding the Fourth Proportional to 5,780.14, 7,976.46 and 3,422.32

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Solution

The fourth proportional to 5,780.14, 7,976.46 and 3,422.32 is: 4,722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.14 : 7,976.46 = 3,422.32 : x
  2. Step 2: Convert to fraction form
    5,780.14/7,976.46 = 3,422.32/x
  3. Step 3: Cross multiply
    5,780.14x = 7,976.46 × 3,422.32
  4. Step 4: Simplify right side
    5,780.14x = 27,297,998.59
  5. Step 5: Solve for x
    x = 27,297,998.59/5,780.14
  6. Step 6: Final answer
    x = 4,722.72

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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.