Home / 2,851.15-3,935.79-1,732.45

Finding the Fourth Proportional to 2,851.15, 3,935.79 and 1,732.45

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Solution

The fourth proportional to 2,851.15, 3,935.79 and 1,732.45 is: 2,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.15 : 3,935.79 = 1,732.45 : x
  2. Step 2: Convert to fraction form
    2,851.15/3,935.79 = 1,732.45/x
  3. Step 3: Cross multiply
    2,851.15x = 3,935.79 × 1,732.45
  4. Step 4: Simplify right side
    2,851.15x = 6,818,531.04
  5. Step 5: Solve for x
    x = 6,818,531.04/2,851.15
  6. Step 6: Final answer
    x = 2,391.51

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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.