Home / 5,435.28-8,147.22-2,658.12

Finding the Fourth Proportional to 5,435.28, 8,147.22 and 2,658.12

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Solution

The fourth proportional to 5,435.28, 8,147.22 and 2,658.12 is: 3,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.28 : 8,147.22 = 2,658.12 : x
  2. Step 2: Convert to fraction form
    5,435.28/8,147.22 = 2,658.12/x
  3. Step 3: Cross multiply
    5,435.28x = 8,147.22 × 2,658.12
  4. Step 4: Simplify right side
    5,435.28x = 21,656,288.43
  5. Step 5: Solve for x
    x = 21,656,288.43/5,435.28
  6. Step 6: Final answer
    x = 3,984.39

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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.