Home / 4,749.71-7,124.58-1,286.96

Finding the Fourth Proportional to 4,749.71, 7,124.58 and 1,286.96

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Solution

The fourth proportional to 4,749.71, 7,124.58 and 1,286.96 is: 1,930.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.71 : 7,124.58 = 1,286.96 : x
  2. Step 2: Convert to fraction form
    4,749.71/7,124.58 = 1,286.96/x
  3. Step 3: Cross multiply
    4,749.71x = 7,124.58 × 1,286.96
  4. Step 4: Simplify right side
    4,749.71x = 9,169,049.48
  5. Step 5: Solve for x
    x = 9,169,049.48/4,749.71
  6. Step 6: Final answer
    x = 1,930.44

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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.