Home / 7,807.28-11,709.70-2,542.49

Finding the Fourth Proportional to 7,807.28, 11,709.70 and 2,542.49

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Solution

The fourth proportional to 7,807.28, 11,709.70 and 2,542.49 is: 3,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.28 : 11,709.70 = 2,542.49 : x
  2. Step 2: Convert to fraction form
    7,807.28/11,709.70 = 2,542.49/x
  3. Step 3: Cross multiply
    7,807.28x = 11,709.70 × 2,542.49
  4. Step 4: Simplify right side
    7,807.28x = 29,771,730.25
  5. Step 5: Solve for x
    x = 29,771,730.25/7,807.28
  6. Step 6: Final answer
    x = 3,813.33

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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.