Home / 5,423.20-8,138.72-4,193.60

Finding the Fourth Proportional to 5,423.20, 8,138.72 and 4,193.60

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Solution

The fourth proportional to 5,423.20, 8,138.72 and 4,193.60 is: 6,293.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.20 : 8,138.72 = 4,193.60 : x
  2. Step 2: Convert to fraction form
    5,423.20/8,138.72 = 4,193.60/x
  3. Step 3: Cross multiply
    5,423.20x = 8,138.72 × 4,193.60
  4. Step 4: Simplify right side
    5,423.20x = 34,130,536.19
  5. Step 5: Solve for x
    x = 34,130,536.19/5,423.20
  6. Step 6: Final answer
    x = 6,293.43

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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.