Home / 2,955.75-4,078.92-1,629.51

Finding the Fourth Proportional to 2,955.75, 4,078.92 and 1,629.51

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Solution

The fourth proportional to 2,955.75, 4,078.92 and 1,629.51 is: 2,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.75 : 4,078.92 = 1,629.51 : x
  2. Step 2: Convert to fraction form
    2,955.75/4,078.92 = 1,629.51/x
  3. Step 3: Cross multiply
    2,955.75x = 4,078.92 × 1,629.51
  4. Step 4: Simplify right side
    2,955.75x = 6,646,640.93
  5. Step 5: Solve for x
    x = 6,646,640.93/2,955.75
  6. Step 6: Final answer
    x = 2,248.72

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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.