Home / 2,769.36-4,153.68-1,230

Finding the Fourth Proportional to 2,769.36, 4,153.68 and 1,230

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Solution

The fourth proportional to 2,769.36, 4,153.68 and 1,230 is: 1,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.36 : 4,153.68 = 1,230 : x
  2. Step 2: Convert to fraction form
    2,769.36/4,153.68 = 1,230/x
  3. Step 3: Cross multiply
    2,769.36x = 4,153.68 × 1,230
  4. Step 4: Simplify right side
    2,769.36x = 5,109,026.40
  5. Step 5: Solve for x
    x = 5,109,026.40/2,769.36
  6. Step 6: Final answer
    x = 1,844.84

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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.