Home / 2,955.30-4,078.35-1,629.06

Finding the Fourth Proportional to 2,955.30, 4,078.35 and 1,629.06

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Solution

The fourth proportional to 2,955.30, 4,078.35 and 1,629.06 is: 2,248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.30 : 4,078.35 = 1,629.06 : x
  2. Step 2: Convert to fraction form
    2,955.30/4,078.35 = 1,629.06/x
  3. Step 3: Cross multiply
    2,955.30x = 4,078.35 × 1,629.06
  4. Step 4: Simplify right side
    2,955.30x = 6,643,853.54
  5. Step 5: Solve for x
    x = 6,643,853.54/2,955.30
  6. Step 6: Final answer
    x = 2,248.11

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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.