Home / 7,287.13-10,928.01-2,605.87

Finding the Fourth Proportional to 7,287.13, 10,928.01 and 2,605.87

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Solution

The fourth proportional to 7,287.13, 10,928.01 and 2,605.87 is: 3,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.13 : 10,928.01 = 2,605.87 : x
  2. Step 2: Convert to fraction form
    7,287.13/10,928.01 = 2,605.87/x
  3. Step 3: Cross multiply
    7,287.13x = 10,928.01 × 2,605.87
  4. Step 4: Simplify right side
    7,287.13x = 28,476,996.85
  5. Step 5: Solve for x
    x = 28,476,996.85/7,287.13
  6. Step 6: Final answer
    x = 3,907.85

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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.