Home / 6,619.56-9,923.58-3,807.78

Finding the Fourth Proportional to 6,619.56, 9,923.58 and 3,807.78

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Solution

The fourth proportional to 6,619.56, 9,923.58 and 3,807.78 is: 5,708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.56 : 9,923.58 = 3,807.78 : x
  2. Step 2: Convert to fraction form
    6,619.56/9,923.58 = 3,807.78/x
  3. Step 3: Cross multiply
    6,619.56x = 9,923.58 × 3,807.78
  4. Step 4: Simplify right side
    6,619.56x = 37,786,809.45
  5. Step 5: Solve for x
    x = 37,786,809.45/6,619.56
  6. Step 6: Final answer
    x = 5,708.36

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1.5x scale

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.