Home / 5,438.48-8,144.12-3,484.72

Finding the Fourth Proportional to 5,438.48, 8,144.12 and 3,484.72

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Solution

The fourth proportional to 5,438.48, 8,144.12 and 3,484.72 is: 5,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.48 : 8,144.12 = 3,484.72 : x
  2. Step 2: Convert to fraction form
    5,438.48/8,144.12 = 3,484.72/x
  3. Step 3: Cross multiply
    5,438.48x = 8,144.12 × 3,484.72
  4. Step 4: Simplify right side
    5,438.48x = 28,379,977.85
  5. Step 5: Solve for x
    x = 28,379,977.85/5,438.48
  6. Step 6: Final answer
    x = 5,218.37

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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.