Home / 3,237.12-4,856.22-1,388.28

Finding the Fourth Proportional to 3,237.12, 4,856.22 and 1,388.28

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Solution

The fourth proportional to 3,237.12, 4,856.22 and 1,388.28 is: 2,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.12 : 4,856.22 = 1,388.28 : x
  2. Step 2: Convert to fraction form
    3,237.12/4,856.22 = 1,388.28/x
  3. Step 3: Cross multiply
    3,237.12x = 4,856.22 × 1,388.28
  4. Step 4: Simplify right side
    3,237.12x = 6,741,793.10
  5. Step 5: Solve for x
    x = 6,741,793.10/3,237.12
  6. Step 6: Final answer
    x = 2,082.65

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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.