Home / 2,955.63-4,078.71-1,629.30

Finding the Fourth Proportional to 2,955.63, 4,078.71 and 1,629.30

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Solution

The fourth proportional to 2,955.63, 4,078.71 and 1,629.30 is: 2,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.63 : 4,078.71 = 1,629.30 : x
  2. Step 2: Convert to fraction form
    2,955.63/4,078.71 = 1,629.30/x
  3. Step 3: Cross multiply
    2,955.63x = 4,078.71 × 1,629.30
  4. Step 4: Simplify right side
    2,955.63x = 6,645,442.20
  5. Step 5: Solve for x
    x = 6,645,442.20/2,955.63
  6. Step 6: Final answer
    x = 2,248.40

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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.