Home / 7,286.43-10,928.91-3,125.64

Finding the Fourth Proportional to 7,286.43, 10,928.91 and 3,125.64

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Solution

The fourth proportional to 7,286.43, 10,928.91 and 3,125.64 is: 4,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.43 : 10,928.91 = 3,125.64 : x
  2. Step 2: Convert to fraction form
    7,286.43/10,928.91 = 3,125.64/x
  3. Step 3: Cross multiply
    7,286.43x = 10,928.91 × 3,125.64
  4. Step 4: Simplify right side
    7,286.43x = 34,159,838.25
  5. Step 5: Solve for x
    x = 34,159,838.25/7,286.43
  6. Step 6: Final answer
    x = 4,688.14

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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.