Home / 2,955.40-4,078.44-1,629.12

Finding the Fourth Proportional to 2,955.40, 4,078.44 and 1,629.12

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Solution

The fourth proportional to 2,955.40, 4,078.44 and 1,629.12 is: 2,248.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.40 : 4,078.44 = 1,629.12 : x
  2. Step 2: Convert to fraction form
    2,955.40/4,078.44 = 1,629.12/x
  3. Step 3: Cross multiply
    2,955.40x = 4,078.44 × 1,629.12
  4. Step 4: Simplify right side
    2,955.40x = 6,644,246.77
  5. Step 5: Solve for x
    x = 6,644,246.77/2,955.40
  6. Step 6: Final answer
    x = 2,248.17

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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.