Home / 6,518.40-8,993.19-4,161.90

Finding the Fourth Proportional to 6,518.40, 8,993.19 and 4,161.90

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Solution

The fourth proportional to 6,518.40, 8,993.19 and 4,161.90 is: 5,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.40 : 8,993.19 = 4,161.90 : x
  2. Step 2: Convert to fraction form
    6,518.40/8,993.19 = 4,161.90/x
  3. Step 3: Cross multiply
    6,518.40x = 8,993.19 × 4,161.90
  4. Step 4: Simplify right side
    6,518.40x = 37,428,757.46
  5. Step 5: Solve for x
    x = 37,428,757.46/6,518.40
  6. Step 6: Final answer
    x = 5,742.02

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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.