Home / 7,481.28-10,325.36-5,709.52

Finding the Fourth Proportional to 7,481.28, 10,325.36 and 5,709.52

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Solution

The fourth proportional to 7,481.28, 10,325.36 and 5,709.52 is: 7,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.28 : 10,325.36 = 5,709.52 : x
  2. Step 2: Convert to fraction form
    7,481.28/10,325.36 = 5,709.52/x
  3. Step 3: Cross multiply
    7,481.28x = 10,325.36 × 5,709.52
  4. Step 4: Simplify right side
    7,481.28x = 58,952,849.43
  5. Step 5: Solve for x
    x = 58,952,849.43/7,481.28
  6. Step 6: Final answer
    x = 7,880.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.