Home / 5,628.28-7,767.63-3,238.36

Finding the Fourth Proportional to 5,628.28, 7,767.63 and 3,238.36

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Solution

The fourth proportional to 5,628.28, 7,767.63 and 3,238.36 is: 4,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.28 : 7,767.63 = 3,238.36 : x
  2. Step 2: Convert to fraction form
    5,628.28/7,767.63 = 3,238.36/x
  3. Step 3: Cross multiply
    5,628.28x = 7,767.63 × 3,238.36
  4. Step 4: Simplify right side
    5,628.28x = 25,154,362.87
  5. Step 5: Solve for x
    x = 25,154,362.87/5,628.28
  6. Step 6: Final answer
    x = 4,469.28

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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.