Home / 5,157.45-7,120.41-3,269.34

Finding the Fourth Proportional to 5,157.45, 7,120.41 and 3,269.34

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Solution

The fourth proportional to 5,157.45, 7,120.41 and 3,269.34 is: 4,513.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.45 : 7,120.41 = 3,269.34 : x
  2. Step 2: Convert to fraction form
    5,157.45/7,120.41 = 3,269.34/x
  3. Step 3: Cross multiply
    5,157.45x = 7,120.41 × 3,269.34
  4. Step 4: Simplify right side
    5,157.45x = 23,279,041.23
  5. Step 5: Solve for x
    x = 23,279,041.23/5,157.45
  6. Step 6: Final answer
    x = 4,513.67

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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.