Home / 5,880.56-8,115.19-3,191.78

Finding the Fourth Proportional to 5,880.56, 8,115.19 and 3,191.78

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Solution

The fourth proportional to 5,880.56, 8,115.19 and 3,191.78 is: 4,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880.56 : 8,115.19 = 3,191.78 : x
  2. Step 2: Convert to fraction form
    5,880.56/8,115.19 = 3,191.78/x
  3. Step 3: Cross multiply
    5,880.56x = 8,115.19 × 3,191.78
  4. Step 4: Simplify right side
    5,880.56x = 25,901,913.45
  5. Step 5: Solve for x
    x = 25,901,913.45/5,880.56
  6. Step 6: Final answer
    x = 4,404.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.