Home / 2,769.90-3,822.51-1,511.01

Finding the Fourth Proportional to 2,769.90, 3,822.51 and 1,511.01

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Solution

The fourth proportional to 2,769.90, 3,822.51 and 1,511.01 is: 2,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.90 : 3,822.51 = 1,511.01 : x
  2. Step 2: Convert to fraction form
    2,769.90/3,822.51 = 1,511.01/x
  3. Step 3: Cross multiply
    2,769.90x = 3,822.51 × 1,511.01
  4. Step 4: Simplify right side
    2,769.90x = 5,775,850.84
  5. Step 5: Solve for x
    x = 5,775,850.84/2,769.90
  6. Step 6: Final answer
    x = 2,085.22

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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.