Home / 3,151.65-4,351.14-2,801.33

Finding the Fourth Proportional to 3,151.65, 4,351.14 and 2,801.33

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Solution

The fourth proportional to 3,151.65, 4,351.14 and 2,801.33 is: 3,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.65 : 4,351.14 = 2,801.33 : x
  2. Step 2: Convert to fraction form
    3,151.65/4,351.14 = 2,801.33/x
  3. Step 3: Cross multiply
    3,151.65x = 4,351.14 × 2,801.33
  4. Step 4: Simplify right side
    3,151.65x = 12,188,957.26
  5. Step 5: Solve for x
    x = 12,188,957.26/3,151.65
  6. Step 6: Final answer
    x = 3,867.48

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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.