Home / 5,618.56-8,420.34-4,313.62

Finding the Fourth Proportional to 5,618.56, 8,420.34 and 4,313.62

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Solution

The fourth proportional to 5,618.56, 8,420.34 and 4,313.62 is: 6,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.56 : 8,420.34 = 4,313.62 : x
  2. Step 2: Convert to fraction form
    5,618.56/8,420.34 = 4,313.62/x
  3. Step 3: Cross multiply
    5,618.56x = 8,420.34 × 4,313.62
  4. Step 4: Simplify right side
    5,618.56x = 36,322,147.03
  5. Step 5: Solve for x
    x = 36,322,147.03/5,618.56
  6. Step 6: Final answer
    x = 6,464.67

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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.