Home / 7,920.35-10,930.64-4,383.79

Finding the Fourth Proportional to 7,920.35, 10,930.64 and 4,383.79

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Solution

The fourth proportional to 7,920.35, 10,930.64 and 4,383.79 is: 6,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.35 : 10,930.64 = 4,383.79 : x
  2. Step 2: Convert to fraction form
    7,920.35/10,930.64 = 4,383.79/x
  3. Step 3: Cross multiply
    7,920.35x = 10,930.64 × 4,383.79
  4. Step 4: Simplify right side
    7,920.35x = 47,917,581.08
  5. Step 5: Solve for x
    x = 47,917,581.08/7,920.35
  6. Step 6: Final answer
    x = 6,049.93

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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.