Home / 5,518.20-8,258.10-5,057.40

Finding the Fourth Proportional to 5,518.20, 8,258.10 and 5,057.40

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Solution

The fourth proportional to 5,518.20, 8,258.10 and 5,057.40 is: 7,568.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.20 : 8,258.10 = 5,057.40 : x
  2. Step 2: Convert to fraction form
    5,518.20/8,258.10 = 5,057.40/x
  3. Step 3: Cross multiply
    5,518.20x = 8,258.10 × 5,057.40
  4. Step 4: Simplify right side
    5,518.20x = 41,764,514.94
  5. Step 5: Solve for x
    x = 41,764,514.94/5,518.20
  6. Step 6: Final answer
    x = 7,568.50

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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.