Home / 5,640.05-7,784.55-3,282.54

Finding the Fourth Proportional to 5,640.05, 7,784.55 and 3,282.54

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Solution

The fourth proportional to 5,640.05, 7,784.55 and 3,282.54 is: 4,530.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.05 : 7,784.55 = 3,282.54 : x
  2. Step 2: Convert to fraction form
    5,640.05/7,784.55 = 3,282.54/x
  3. Step 3: Cross multiply
    5,640.05x = 7,784.55 × 3,282.54
  4. Step 4: Simplify right side
    5,640.05x = 25,553,096.76
  5. Step 5: Solve for x
    x = 25,553,096.76/5,640.05
  6. Step 6: Final answer
    x = 4,530.65

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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.