Home / 4,917.11-6,782.81-2,928.29

Finding the Fourth Proportional to 4,917.11, 6,782.81 and 2,928.29

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Solution

The fourth proportional to 4,917.11, 6,782.81 and 2,928.29 is: 4,039.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.11 : 6,782.81 = 2,928.29 : x
  2. Step 2: Convert to fraction form
    4,917.11/6,782.81 = 2,928.29/x
  3. Step 3: Cross multiply
    4,917.11x = 6,782.81 × 2,928.29
  4. Step 4: Simplify right side
    4,917.11x = 19,861,986.14
  5. Step 5: Solve for x
    x = 19,861,986.14/4,917.11
  6. Step 6: Final answer
    x = 4,039.37

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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.