Home / 5,419.56-8,129.34-1,523.97

Finding the Fourth Proportional to 5,419.56, 8,129.34 and 1,523.97

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Solution

The fourth proportional to 5,419.56, 8,129.34 and 1,523.97 is: 2,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.56 : 8,129.34 = 1,523.97 : x
  2. Step 2: Convert to fraction form
    5,419.56/8,129.34 = 1,523.97/x
  3. Step 3: Cross multiply
    5,419.56x = 8,129.34 × 1,523.97
  4. Step 4: Simplify right side
    5,419.56x = 12,388,870.28
  5. Step 5: Solve for x
    x = 12,388,870.28/5,419.56
  6. Step 6: Final answer
    x = 2,285.96

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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.