Home / 5,216.11-7,815.36-2,580.10

Finding the Fourth Proportional to 5,216.11, 7,815.36 and 2,580.10

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Solution

The fourth proportional to 5,216.11, 7,815.36 and 2,580.10 is: 3,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.11 : 7,815.36 = 2,580.10 : x
  2. Step 2: Convert to fraction form
    5,216.11/7,815.36 = 2,580.10/x
  3. Step 3: Cross multiply
    5,216.11x = 7,815.36 × 2,580.10
  4. Step 4: Simplify right side
    5,216.11x = 20,164,400.47
  5. Step 5: Solve for x
    x = 20,164,400.47/5,216.11
  6. Step 6: Final answer
    x = 3,865.79

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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.