Home / 3,009.28-4,515.12-1,277.92

Finding the Fourth Proportional to 3,009.28, 4,515.12 and 1,277.92

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Solution

The fourth proportional to 3,009.28, 4,515.12 and 1,277.92 is: 1,917.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.28 : 4,515.12 = 1,277.92 : x
  2. Step 2: Convert to fraction form
    3,009.28/4,515.12 = 1,277.92/x
  3. Step 3: Cross multiply
    3,009.28x = 4,515.12 × 1,277.92
  4. Step 4: Simplify right side
    3,009.28x = 5,769,962.15
  5. Step 5: Solve for x
    x = 5,769,962.15/3,009.28
  6. Step 6: Final answer
    x = 1,917.39

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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.