Home / 2,792.42-3,855.34-1,731.31

Finding the Fourth Proportional to 2,792.42, 3,855.34 and 1,731.31

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Solution

The fourth proportional to 2,792.42, 3,855.34 and 1,731.31 is: 2,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.42 : 3,855.34 = 1,731.31 : x
  2. Step 2: Convert to fraction form
    2,792.42/3,855.34 = 1,731.31/x
  3. Step 3: Cross multiply
    2,792.42x = 3,855.34 × 1,731.31
  4. Step 4: Simplify right side
    2,792.42x = 6,674,795.96
  5. Step 5: Solve for x
    x = 6,674,795.96/2,792.42
  6. Step 6: Final answer
    x = 2,390.33

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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.