Home / 4,277.28-6,405.12-2,889.12

Finding the Fourth Proportional to 4,277.28, 6,405.12 and 2,889.12

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Solution

The fourth proportional to 4,277.28, 6,405.12 and 2,889.12 is: 4,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,277.28 : 6,405.12 = 2,889.12 : x
  2. Step 2: Convert to fraction form
    4,277.28/6,405.12 = 2,889.12/x
  3. Step 3: Cross multiply
    4,277.28x = 6,405.12 × 2,889.12
  4. Step 4: Simplify right side
    4,277.28x = 18,505,160.29
  5. Step 5: Solve for x
    x = 18,505,160.29/4,277.28
  6. Step 6: Final answer
    x = 4,326.39

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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.