Home / 5,500.90-8,255.40-3,423.93

Finding the Fourth Proportional to 5,500.90, 8,255.40 and 3,423.93

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Solution

The fourth proportional to 5,500.90, 8,255.40 and 3,423.93 is: 5,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.90 : 8,255.40 = 3,423.93 : x
  2. Step 2: Convert to fraction form
    5,500.90/8,255.40 = 3,423.93/x
  3. Step 3: Cross multiply
    5,500.90x = 8,255.40 × 3,423.93
  4. Step 4: Simplify right side
    5,500.90x = 28,265,911.72
  5. Step 5: Solve for x
    x = 28,265,911.72/5,500.90
  6. Step 6: Final answer
    x = 5,138.42

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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.