Home / 4,453.28-6,139.48-2,961.28

Finding the Fourth Proportional to 4,453.28, 6,139.48 and 2,961.28

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Solution

The fourth proportional to 4,453.28, 6,139.48 and 2,961.28 is: 4,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,453.28 : 6,139.48 = 2,961.28 : x
  2. Step 2: Convert to fraction form
    4,453.28/6,139.48 = 2,961.28/x
  3. Step 3: Cross multiply
    4,453.28x = 6,139.48 × 2,961.28
  4. Step 4: Simplify right side
    4,453.28x = 18,180,719.33
  5. Step 5: Solve for x
    x = 18,180,719.33/4,453.28
  6. Step 6: Final answer
    x = 4,082.55

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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.