Home / 2,999.84-4,139.51-1,821.29

Finding the Fourth Proportional to 2,999.84, 4,139.51 and 1,821.29

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Solution

The fourth proportional to 2,999.84, 4,139.51 and 1,821.29 is: 2,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.84 : 4,139.51 = 1,821.29 : x
  2. Step 2: Convert to fraction form
    2,999.84/4,139.51 = 1,821.29/x
  3. Step 3: Cross multiply
    2,999.84x = 4,139.51 × 1,821.29
  4. Step 4: Simplify right side
    2,999.84x = 7,539,218.36
  5. Step 5: Solve for x
    x = 7,539,218.36/2,999.84
  6. Step 6: Final answer
    x = 2,513.21

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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.