Home / 5,628.92-7,759.67-3,945.24

Finding the Fourth Proportional to 5,628.92, 7,759.67 and 3,945.24

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Solution

The fourth proportional to 5,628.92, 7,759.67 and 3,945.24 is: 5,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.92 : 7,759.67 = 3,945.24 : x
  2. Step 2: Convert to fraction form
    5,628.92/7,759.67 = 3,945.24/x
  3. Step 3: Cross multiply
    5,628.92x = 7,759.67 × 3,945.24
  4. Step 4: Simplify right side
    5,628.92x = 30,613,740.74
  5. Step 5: Solve for x
    x = 30,613,740.74/5,628.92
  6. Step 6: Final answer
    x = 5,438.66

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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.