Home / 7,279.06-10,920.30-2,896.96

Finding the Fourth Proportional to 7,279.06, 10,920.30 and 2,896.96

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Solution

The fourth proportional to 7,279.06, 10,920.30 and 2,896.96 is: 4,346.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.06 : 10,920.30 = 2,896.96 : x
  2. Step 2: Convert to fraction form
    7,279.06/10,920.30 = 2,896.96/x
  3. Step 3: Cross multiply
    7,279.06x = 10,920.30 × 2,896.96
  4. Step 4: Simplify right side
    7,279.06x = 31,635,672.29
  5. Step 5: Solve for x
    x = 31,635,672.29/7,279.06
  6. Step 6: Final answer
    x = 4,346.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.