Home / 5,122.94-7,678.07-2,488.29

Finding the Fourth Proportional to 5,122.94, 7,678.07 and 2,488.29

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Solution

The fourth proportional to 5,122.94, 7,678.07 and 2,488.29 is: 3,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.94 : 7,678.07 = 2,488.29 : x
  2. Step 2: Convert to fraction form
    5,122.94/7,678.07 = 2,488.29/x
  3. Step 3: Cross multiply
    5,122.94x = 7,678.07 × 2,488.29
  4. Step 4: Simplify right side
    5,122.94x = 19,105,252.36
  5. Step 5: Solve for x
    x = 19,105,252.36/5,122.94
  6. Step 6: Final answer
    x = 3,729.35

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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.