Home / 7,958.98-10,979.28-4,769.74

Finding the Fourth Proportional to 7,958.98, 10,979.28 and 4,769.74

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Solution

The fourth proportional to 7,958.98, 10,979.28 and 4,769.74 is: 6,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.98 : 10,979.28 = 4,769.74 : x
  2. Step 2: Convert to fraction form
    7,958.98/10,979.28 = 4,769.74/x
  3. Step 3: Cross multiply
    7,958.98x = 10,979.28 × 4,769.74
  4. Step 4: Simplify right side
    7,958.98x = 52,368,310.99
  5. Step 5: Solve for x
    x = 52,368,310.99/7,958.98
  6. Step 6: Final answer
    x = 6,579.78

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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.