Home / 5,419.23-8,128.27-3,675.43

Finding the Fourth Proportional to 5,419.23, 8,128.27 and 3,675.43

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Solution

The fourth proportional to 5,419.23, 8,128.27 and 3,675.43 is: 5,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.23 : 8,128.27 = 3,675.43 : x
  2. Step 2: Convert to fraction form
    5,419.23/8,128.27 = 3,675.43/x
  3. Step 3: Cross multiply
    5,419.23x = 8,128.27 × 3,675.43
  4. Step 4: Simplify right side
    5,419.23x = 29,874,888.38
  5. Step 5: Solve for x
    x = 29,874,888.38/5,419.23
  6. Step 6: Final answer
    x = 5,512.75

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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.