Home / 5,240.78-7,232.24-3,002.64

Finding the Fourth Proportional to 5,240.78, 7,232.24 and 3,002.64

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Solution

The fourth proportional to 5,240.78, 7,232.24 and 3,002.64 is: 4,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.78 : 7,232.24 = 3,002.64 : x
  2. Step 2: Convert to fraction form
    5,240.78/7,232.24 = 3,002.64/x
  3. Step 3: Cross multiply
    5,240.78x = 7,232.24 × 3,002.64
  4. Step 4: Simplify right side
    5,240.78x = 21,715,798.10
  5. Step 5: Solve for x
    x = 21,715,798.10/5,240.78
  6. Step 6: Final answer
    x = 4,143.62

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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.