Home / 5,423.70-8,131.91-2,135.10

Finding the Fourth Proportional to 5,423.70, 8,131.91 and 2,135.10

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Solution

The fourth proportional to 5,423.70, 8,131.91 and 2,135.10 is: 3,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.70 : 8,131.91 = 2,135.10 : x
  2. Step 2: Convert to fraction form
    5,423.70/8,131.91 = 2,135.10/x
  3. Step 3: Cross multiply
    5,423.70x = 8,131.91 × 2,135.10
  4. Step 4: Simplify right side
    5,423.70x = 17,362,430.37
  5. Step 5: Solve for x
    x = 17,362,430.37/5,423.70
  6. Step 6: Final answer
    x = 3,201.22

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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.