Home / 5,628.30-7,765.80-3,238.56

Finding the Fourth Proportional to 5,628.30, 7,765.80 and 3,238.56

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Solution

The fourth proportional to 5,628.30, 7,765.80 and 3,238.56 is: 4,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.30 : 7,765.80 = 3,238.56 : x
  2. Step 2: Convert to fraction form
    5,628.30/7,765.80 = 3,238.56/x
  3. Step 3: Cross multiply
    5,628.30x = 7,765.80 × 3,238.56
  4. Step 4: Simplify right side
    5,628.30x = 25,150,009.25
  5. Step 5: Solve for x
    x = 25,150,009.25/5,628.30
  6. Step 6: Final answer
    x = 4,468.49

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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.