Home / 2,677.92-4,015.16-1,288.48

Finding the Fourth Proportional to 2,677.92, 4,015.16 and 1,288.48

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Solution

The fourth proportional to 2,677.92, 4,015.16 and 1,288.48 is: 1,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.92 : 4,015.16 = 1,288.48 : x
  2. Step 2: Convert to fraction form
    2,677.92/4,015.16 = 1,288.48/x
  3. Step 3: Cross multiply
    2,677.92x = 4,015.16 × 1,288.48
  4. Step 4: Simplify right side
    2,677.92x = 5,173,453.36
  5. Step 5: Solve for x
    x = 5,173,453.36/2,677.92
  6. Step 6: Final answer
    x = 1,931.89

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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.