Home / 7,919.74-10,929.92-4,383.64

Finding the Fourth Proportional to 7,919.74, 10,929.92 and 4,383.64

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Solution

The fourth proportional to 7,919.74, 10,929.92 and 4,383.64 is: 6,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.74 : 10,929.92 = 4,383.64 : x
  2. Step 2: Convert to fraction form
    7,919.74/10,929.92 = 4,383.64/x
  3. Step 3: Cross multiply
    7,919.74x = 10,929.92 × 4,383.64
  4. Step 4: Simplify right side
    7,919.74x = 47,912,834.51
  5. Step 5: Solve for x
    x = 47,912,834.51/7,919.74
  6. Step 6: Final answer
    x = 6,049.80

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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.