Home / 4,161.56-6,243.34-1,388.25

Finding the Fourth Proportional to 4,161.56, 6,243.34 and 1,388.25

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Solution

The fourth proportional to 4,161.56, 6,243.34 and 1,388.25 is: 2,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.56 : 6,243.34 = 1,388.25 : x
  2. Step 2: Convert to fraction form
    4,161.56/6,243.34 = 1,388.25/x
  3. Step 3: Cross multiply
    4,161.56x = 6,243.34 × 1,388.25
  4. Step 4: Simplify right side
    4,161.56x = 8,667,341.90
  5. Step 5: Solve for x
    x = 8,667,341.90/4,161.56
  6. Step 6: Final answer
    x = 2,082.72

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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.