Home / 2,688.89-4,029.68-1,224.81

Finding the Fourth Proportional to 2,688.89, 4,029.68 and 1,224.81

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Solution

The fourth proportional to 2,688.89, 4,029.68 and 1,224.81 is: 1,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.89 : 4,029.68 = 1,224.81 : x
  2. Step 2: Convert to fraction form
    2,688.89/4,029.68 = 1,224.81/x
  3. Step 3: Cross multiply
    2,688.89x = 4,029.68 × 1,224.81
  4. Step 4: Simplify right side
    2,688.89x = 4,935,586.24
  5. Step 5: Solve for x
    x = 4,935,586.24/2,688.89
  6. Step 6: Final answer
    x = 1,835.55

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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.