Home / 1,777.92-2,664.06-1,288.68

Finding the Fourth Proportional to 1,777.92, 2,664.06 and 1,288.68

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Solution

The fourth proportional to 1,777.92, 2,664.06 and 1,288.68 is: 1,930.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.92 : 2,664.06 = 1,288.68 : x
  2. Step 2: Convert to fraction form
    1,777.92/2,664.06 = 1,288.68/x
  3. Step 3: Cross multiply
    1,777.92x = 2,664.06 × 1,288.68
  4. Step 4: Simplify right side
    1,777.92x = 3,433,120.84
  5. Step 5: Solve for x
    x = 3,433,120.84/1,777.92
  6. Step 6: Final answer
    x = 1,930.98

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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.