Home / 7,919.75-10,929.20-4,383.16

Finding the Fourth Proportional to 7,919.75, 10,929.20 and 4,383.16

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Solution

The fourth proportional to 7,919.75, 10,929.20 and 4,383.16 is: 6,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.75 : 10,929.20 = 4,383.16 : x
  2. Step 2: Convert to fraction form
    7,919.75/10,929.20 = 4,383.16/x
  3. Step 3: Cross multiply
    7,919.75x = 10,929.20 × 4,383.16
  4. Step 4: Simplify right side
    7,919.75x = 47,904,383.03
  5. Step 5: Solve for x
    x = 47,904,383.03/7,919.75
  6. Step 6: Final answer
    x = 6,048.72

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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.