Home / 7,920.06-10,930.38-4,383.92

Finding the Fourth Proportional to 7,920.06, 10,930.38 and 4,383.92

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Solution

The fourth proportional to 7,920.06, 10,930.38 and 4,383.92 is: 6,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.06 : 10,930.38 = 4,383.92 : x
  2. Step 2: Convert to fraction form
    7,920.06/10,930.38 = 4,383.92/x
  3. Step 3: Cross multiply
    7,920.06x = 10,930.38 × 4,383.92
  4. Step 4: Simplify right side
    7,920.06x = 47,917,911.49
  5. Step 5: Solve for x
    x = 47,917,911.49/7,920.06
  6. Step 6: Final answer
    x = 6,050.20

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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.