Home / 5,434.35-8,154.42-2,147.49

Finding the Fourth Proportional to 5,434.35, 8,154.42 and 2,147.49

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Solution

The fourth proportional to 5,434.35, 8,154.42 and 2,147.49 is: 3,222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.35 : 8,154.42 = 2,147.49 : x
  2. Step 2: Convert to fraction form
    5,434.35/8,154.42 = 2,147.49/x
  3. Step 3: Cross multiply
    5,434.35x = 8,154.42 × 2,147.49
  4. Step 4: Simplify right side
    5,434.35x = 17,511,535.41
  5. Step 5: Solve for x
    x = 17,511,535.41/5,434.35
  6. Step 6: Final answer
    x = 3,222.38

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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.