Home / 5,708.28-7,875.08-3,469.78

Finding the Fourth Proportional to 5,708.28, 7,875.08 and 3,469.78

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Solution

The fourth proportional to 5,708.28, 7,875.08 and 3,469.78 is: 4,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.28 : 7,875.08 = 3,469.78 : x
  2. Step 2: Convert to fraction form
    5,708.28/7,875.08 = 3,469.78/x
  3. Step 3: Cross multiply
    5,708.28x = 7,875.08 × 3,469.78
  4. Step 4: Simplify right side
    5,708.28x = 27,324,795.08
  5. Step 5: Solve for x
    x = 27,324,795.08/5,708.28
  6. Step 6: Final answer
    x = 4,786.87

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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.