Home / 2,632.08-3,947.28-1,072.08

Finding the Fourth Proportional to 2,632.08, 3,947.28 and 1,072.08

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Solution

The fourth proportional to 2,632.08, 3,947.28 and 1,072.08 is: 1,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632.08 : 3,947.28 = 1,072.08 : x
  2. Step 2: Convert to fraction form
    2,632.08/3,947.28 = 1,072.08/x
  3. Step 3: Cross multiply
    2,632.08x = 3,947.28 × 1,072.08
  4. Step 4: Simplify right side
    2,632.08x = 4,231,799.94
  5. Step 5: Solve for x
    x = 4,231,799.94/2,632.08
  6. Step 6: Final answer
    x = 1,607.78

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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.