Home / 5,628.42-7,768.80-3,270.12

Finding the Fourth Proportional to 5,628.42, 7,768.80 and 3,270.12

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Solution

The fourth proportional to 5,628.42, 7,768.80 and 3,270.12 is: 4,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.42 : 7,768.80 = 3,270.12 : x
  2. Step 2: Convert to fraction form
    5,628.42/7,768.80 = 3,270.12/x
  3. Step 3: Cross multiply
    5,628.42x = 7,768.80 × 3,270.12
  4. Step 4: Simplify right side
    5,628.42x = 25,404,908.26
  5. Step 5: Solve for x
    x = 25,404,908.26/5,628.42
  6. Step 6: Final answer
    x = 4,513.68

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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.