Home / 4,516.92-6,778.80-1,921.68

Finding the Fourth Proportional to 4,516.92, 6,778.80 and 1,921.68

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Solution

The fourth proportional to 4,516.92, 6,778.80 and 1,921.68 is: 2,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,516.92 : 6,778.80 = 1,921.68 : x
  2. Step 2: Convert to fraction form
    4,516.92/6,778.80 = 1,921.68/x
  3. Step 3: Cross multiply
    4,516.92x = 6,778.80 × 1,921.68
  4. Step 4: Simplify right side
    4,516.92x = 13,026,684.38
  5. Step 5: Solve for x
    x = 13,026,684.38/4,516.92
  6. Step 6: Final answer
    x = 2,883.98

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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.