Home / 5,415.38-8,119.56-3,560.87

Finding the Fourth Proportional to 5,415.38, 8,119.56 and 3,560.87

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Solution

The fourth proportional to 5,415.38, 8,119.56 and 3,560.87 is: 5,338.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.38 : 8,119.56 = 3,560.87 : x
  2. Step 2: Convert to fraction form
    5,415.38/8,119.56 = 3,560.87/x
  3. Step 3: Cross multiply
    5,415.38x = 8,119.56 × 3,560.87
  4. Step 4: Simplify right side
    5,415.38x = 28,912,657.02
  5. Step 5: Solve for x
    x = 28,912,657.02/5,415.38
  6. Step 6: Final answer
    x = 5,338.99

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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.