Home / 7,919.76-10,930.50-4,516.78

Finding the Fourth Proportional to 7,919.76, 10,930.50 and 4,516.78

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Solution

The fourth proportional to 7,919.76, 10,930.50 and 4,516.78 is: 6,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.76 : 10,930.50 = 4,516.78 : x
  2. Step 2: Convert to fraction form
    7,919.76/10,930.50 = 4,516.78/x
  3. Step 3: Cross multiply
    7,919.76x = 10,930.50 × 4,516.78
  4. Step 4: Simplify right side
    7,919.76x = 49,370,586.55
  5. Step 5: Solve for x
    x = 49,370,586.55/7,919.76
  6. Step 6: Final answer
    x = 6,233.85

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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.