Home / 5,520.60-7,609.68-4,082.45

Finding the Fourth Proportional to 5,520.60, 7,609.68 and 4,082.45

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Solution

The fourth proportional to 5,520.60, 7,609.68 and 4,082.45 is: 5,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.60 : 7,609.68 = 4,082.45 : x
  2. Step 2: Convert to fraction form
    5,520.60/7,609.68 = 4,082.45/x
  3. Step 3: Cross multiply
    5,520.60x = 7,609.68 × 4,082.45
  4. Step 4: Simplify right side
    5,520.60x = 31,066,100.07
  5. Step 5: Solve for x
    x = 31,066,100.07/5,520.60
  6. Step 6: Final answer
    x = 5,627.31

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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.