Home / 5,422.38-8,133.58-2,133.68

Finding the Fourth Proportional to 5,422.38, 8,133.58 and 2,133.68

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Solution

The fourth proportional to 5,422.38, 8,133.58 and 2,133.68 is: 3,200.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.38 : 8,133.58 = 2,133.68 : x
  2. Step 2: Convert to fraction form
    5,422.38/8,133.58 = 2,133.68/x
  3. Step 3: Cross multiply
    5,422.38x = 8,133.58 × 2,133.68
  4. Step 4: Simplify right side
    5,422.38x = 17,354,479.98
  5. Step 5: Solve for x
    x = 17,354,479.98/5,422.38
  6. Step 6: Final answer
    x = 3,200.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.