Home / 7,278.06-10,918.80-2,895.96

Finding the Fourth Proportional to 7,278.06, 10,918.80 and 2,895.96

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Solution

The fourth proportional to 7,278.06, 10,918.80 and 2,895.96 is: 4,344.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.06 : 10,918.80 = 2,895.96 : x
  2. Step 2: Convert to fraction form
    7,278.06/10,918.80 = 2,895.96/x
  3. Step 3: Cross multiply
    7,278.06x = 10,918.80 × 2,895.96
  4. Step 4: Simplify right side
    7,278.06x = 31,620,408.05
  5. Step 5: Solve for x
    x = 31,620,408.05/7,278.06
  6. Step 6: Final answer
    x = 4,344.62

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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.