Home / 5,423.91-8,135.87-2,137.35

Finding the Fourth Proportional to 5,423.91, 8,135.87 and 2,137.35

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Solution

The fourth proportional to 5,423.91, 8,135.87 and 2,137.35 is: 3,206.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.91 : 8,135.87 = 2,137.35 : x
  2. Step 2: Convert to fraction form
    5,423.91/8,135.87 = 2,137.35/x
  3. Step 3: Cross multiply
    5,423.91x = 8,135.87 × 2,137.35
  4. Step 4: Simplify right side
    5,423.91x = 17,389,191.06
  5. Step 5: Solve for x
    x = 17,389,191.06/5,423.91
  6. Step 6: Final answer
    x = 3,206.03

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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.