Home / 2,954.96-4,078.07-1,628.90

Finding the Fourth Proportional to 2,954.96, 4,078.07 and 1,628.90

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Solution

The fourth proportional to 2,954.96, 4,078.07 and 1,628.90 is: 2,248.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.96 : 4,078.07 = 1,628.90 : x
  2. Step 2: Convert to fraction form
    2,954.96/4,078.07 = 1,628.90/x
  3. Step 3: Cross multiply
    2,954.96x = 4,078.07 × 1,628.90
  4. Step 4: Simplify right side
    2,954.96x = 6,642,768.22
  5. Step 5: Solve for x
    x = 6,642,768.22/2,954.96
  6. Step 6: Final answer
    x = 2,248.01

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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.