Home / 6,619.28-9,928.92-4,155.83

Finding the Fourth Proportional to 6,619.28, 9,928.92 and 4,155.83

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Solution

The fourth proportional to 6,619.28, 9,928.92 and 4,155.83 is: 6,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.28 : 9,928.92 = 4,155.83 : x
  2. Step 2: Convert to fraction form
    6,619.28/9,928.92 = 4,155.83/x
  3. Step 3: Cross multiply
    6,619.28x = 9,928.92 × 4,155.83
  4. Step 4: Simplify right side
    6,619.28x = 41,262,883.40
  5. Step 5: Solve for x
    x = 41,262,883.40/6,619.28
  6. Step 6: Final answer
    x = 6,233.75

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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.