Home / 4,992.84-6,890.49-2,897.28

Finding the Fourth Proportional to 4,992.84, 6,890.49 and 2,897.28

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Solution

The fourth proportional to 4,992.84, 6,890.49 and 2,897.28 is: 3,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.84 : 6,890.49 = 2,897.28 : x
  2. Step 2: Convert to fraction form
    4,992.84/6,890.49 = 2,897.28/x
  3. Step 3: Cross multiply
    4,992.84x = 6,890.49 × 2,897.28
  4. Step 4: Simplify right side
    4,992.84x = 19,963,678.87
  5. Step 5: Solve for x
    x = 19,963,678.87/4,992.84
  6. Step 6: Final answer
    x = 3,998.46

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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.