Home / 2,991.33-4,125.94-2,045.45

Finding the Fourth Proportional to 2,991.33, 4,125.94 and 2,045.45

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Solution

The fourth proportional to 2,991.33, 4,125.94 and 2,045.45 is: 2,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.33 : 4,125.94 = 2,045.45 : x
  2. Step 2: Convert to fraction form
    2,991.33/4,125.94 = 2,045.45/x
  3. Step 3: Cross multiply
    2,991.33x = 4,125.94 × 2,045.45
  4. Step 4: Simplify right side
    2,991.33x = 8,439,409.17
  5. Step 5: Solve for x
    x = 8,439,409.17/2,991.33
  6. Step 6: Final answer
    x = 2,821.29

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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.