Home / 5,122.05-7,685.37-2,488.11

Finding the Fourth Proportional to 5,122.05, 7,685.37 and 2,488.11

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Solution

The fourth proportional to 5,122.05, 7,685.37 and 2,488.11 is: 3,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.05 : 7,685.37 = 2,488.11 : x
  2. Step 2: Convert to fraction form
    5,122.05/7,685.37 = 2,488.11/x
  3. Step 3: Cross multiply
    5,122.05x = 7,685.37 × 2,488.11
  4. Step 4: Simplify right side
    5,122.05x = 19,122,045.95
  5. Step 5: Solve for x
    x = 19,122,045.95/5,122.05
  6. Step 6: Final answer
    x = 3,733.28

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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.