Home / 2,910-4,015.76-1,731.04

Finding the Fourth Proportional to 2,910, 4,015.76 and 1,731.04

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Solution

The fourth proportional to 2,910, 4,015.76 and 1,731.04 is: 2,388.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910 : 4,015.76 = 1,731.04 : x
  2. Step 2: Convert to fraction form
    2,910/4,015.76 = 1,731.04/x
  3. Step 3: Cross multiply
    2,910x = 4,015.76 × 1,731.04
  4. Step 4: Simplify right side
    2,910x = 6,951,441.19
  5. Step 5: Solve for x
    x = 6,951,441.19/2,910
  6. Step 6: Final answer
    x = 2,388.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.