Home / 2,955.62-4,078.70-1,629.28

Finding the Fourth Proportional to 2,955.62, 4,078.70 and 1,629.28

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Solution

The fourth proportional to 2,955.62, 4,078.70 and 1,629.28 is: 2,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.62 : 4,078.70 = 1,629.28 : x
  2. Step 2: Convert to fraction form
    2,955.62/4,078.70 = 1,629.28/x
  3. Step 3: Cross multiply
    2,955.62x = 4,078.70 × 1,629.28
  4. Step 4: Simplify right side
    2,955.62x = 6,645,344.34
  5. Step 5: Solve for x
    x = 6,645,344.34/2,955.62
  6. Step 6: Final answer
    x = 2,248.38

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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.