Home / 2,955.85-4,078.96-1,629.47

Finding the Fourth Proportional to 2,955.85, 4,078.96 and 1,629.47

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Solution

The fourth proportional to 2,955.85, 4,078.96 and 1,629.47 is: 2,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.85 : 4,078.96 = 1,629.47 : x
  2. Step 2: Convert to fraction form
    2,955.85/4,078.96 = 1,629.47/x
  3. Step 3: Cross multiply
    2,955.85x = 4,078.96 × 1,629.47
  4. Step 4: Simplify right side
    2,955.85x = 6,646,549.07
  5. Step 5: Solve for x
    x = 6,646,549.07/2,955.85
  6. Step 6: Final answer
    x = 2,248.61

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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.