Home / 2,851.75-3,935.67-1,732.96

Finding the Fourth Proportional to 2,851.75, 3,935.67 and 1,732.96

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Solution

The fourth proportional to 2,851.75, 3,935.67 and 1,732.96 is: 2,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.75 : 3,935.67 = 1,732.96 : x
  2. Step 2: Convert to fraction form
    2,851.75/3,935.67 = 1,732.96/x
  3. Step 3: Cross multiply
    2,851.75x = 3,935.67 × 1,732.96
  4. Step 4: Simplify right side
    2,851.75x = 6,820,358.68
  5. Step 5: Solve for x
    x = 6,820,358.68/2,851.75
  6. Step 6: Final answer
    x = 2,391.64

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1.5x scale

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.