Home / 2,955.68-4,078.48-1,629.28

Finding the Fourth Proportional to 2,955.68, 4,078.48 and 1,629.28

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Solution

The fourth proportional to 2,955.68, 4,078.48 and 1,629.28 is: 2,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.68 : 4,078.48 = 1,629.28 : x
  2. Step 2: Convert to fraction form
    2,955.68/4,078.48 = 1,629.28/x
  3. Step 3: Cross multiply
    2,955.68x = 4,078.48 × 1,629.28
  4. Step 4: Simplify right side
    2,955.68x = 6,644,985.89
  5. Step 5: Solve for x
    x = 6,644,985.89/2,955.68
  6. Step 6: Final answer
    x = 2,248.21

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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.