Home / 2,672.46-4,008.49-1,111.79

Finding the Fourth Proportional to 2,672.46, 4,008.49 and 1,111.79

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Solution

The fourth proportional to 2,672.46, 4,008.49 and 1,111.79 is: 1,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.46 : 4,008.49 = 1,111.79 : x
  2. Step 2: Convert to fraction form
    2,672.46/4,008.49 = 1,111.79/x
  3. Step 3: Cross multiply
    2,672.46x = 4,008.49 × 1,111.79
  4. Step 4: Simplify right side
    2,672.46x = 4,456,606.34
  5. Step 5: Solve for x
    x = 4,456,606.34/2,672.46
  6. Step 6: Final answer
    x = 1,667.60

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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.