Home / 5,415.15-8,112.21-3,560.67

Finding the Fourth Proportional to 5,415.15, 8,112.21 and 3,560.67

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Solution

The fourth proportional to 5,415.15, 8,112.21 and 3,560.67 is: 5,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.15 : 8,112.21 = 3,560.67 : x
  2. Step 2: Convert to fraction form
    5,415.15/8,112.21 = 3,560.67/x
  3. Step 3: Cross multiply
    5,415.15x = 8,112.21 × 3,560.67
  4. Step 4: Simplify right side
    5,415.15x = 28,884,902.78
  5. Step 5: Solve for x
    x = 28,884,902.78/5,415.15
  6. Step 6: Final answer
    x = 5,334.09

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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.