Home / 4,257.28-6,386.88-1,660.96

Finding the Fourth Proportional to 4,257.28, 6,386.88 and 1,660.96

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Solution

The fourth proportional to 4,257.28, 6,386.88 and 1,660.96 is: 2,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.28 : 6,386.88 = 1,660.96 : x
  2. Step 2: Convert to fraction form
    4,257.28/6,386.88 = 1,660.96/x
  3. Step 3: Cross multiply
    4,257.28x = 6,386.88 × 1,660.96
  4. Step 4: Simplify right side
    4,257.28x = 10,608,352.20
  5. Step 5: Solve for x
    x = 10,608,352.20/4,257.28
  6. Step 6: Final answer
    x = 2,491.81

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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.