Home / 5,414.10-8,123.09-2,129.55

Finding the Fourth Proportional to 5,414.10, 8,123.09 and 2,129.55

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Solution

The fourth proportional to 5,414.10, 8,123.09 and 2,129.55 is: 3,195.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.10 : 8,123.09 = 2,129.55 : x
  2. Step 2: Convert to fraction form
    5,414.10/8,123.09 = 2,129.55/x
  3. Step 3: Cross multiply
    5,414.10x = 8,123.09 × 2,129.55
  4. Step 4: Simplify right side
    5,414.10x = 17,298,526.31
  5. Step 5: Solve for x
    x = 17,298,526.31/5,414.10
  6. Step 6: Final answer
    x = 3,195.09

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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.