Home / 7,287.20-10,928.10-2,605.94

Finding the Fourth Proportional to 7,287.20, 10,928.10 and 2,605.94

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Solution

The fourth proportional to 7,287.20, 10,928.10 and 2,605.94 is: 3,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.20 : 10,928.10 = 2,605.94 : x
  2. Step 2: Convert to fraction form
    7,287.20/10,928.10 = 2,605.94/x
  3. Step 3: Cross multiply
    7,287.20x = 10,928.10 × 2,605.94
  4. Step 4: Simplify right side
    7,287.20x = 28,477,972.91
  5. Step 5: Solve for x
    x = 28,477,972.91/7,287.20
  6. Step 6: Final answer
    x = 3,907.94

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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.