Home / 5,239.20-7,856.76-1,951.54

Finding the Fourth Proportional to 5,239.20, 7,856.76 and 1,951.54

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Solution

The fourth proportional to 5,239.20, 7,856.76 and 1,951.54 is: 2,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.20 : 7,856.76 = 1,951.54 : x
  2. Step 2: Convert to fraction form
    5,239.20/7,856.76 = 1,951.54/x
  3. Step 3: Cross multiply
    5,239.20x = 7,856.76 × 1,951.54
  4. Step 4: Simplify right side
    5,239.20x = 15,332,781.41
  5. Step 5: Solve for x
    x = 15,332,781.41/5,239.20
  6. Step 6: Final answer
    x = 2,926.55

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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.