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Finding the Fourth Proportional to 2,955.86, 4,079.00 and 1,629.53

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Solution

The fourth proportional to 2,955.86, 4,079.00 and 1,629.53 is: 2,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.86 : 4,079.00 = 1,629.53 : x
  2. Step 2: Convert to fraction form
    2,955.86/4,079.00 = 1,629.53/x
  3. Step 3: Cross multiply
    2,955.86x = 4,079.00 × 1,629.53
  4. Step 4: Simplify right side
    2,955.86x = 6,646,844.72
  5. Step 5: Solve for x
    x = 6,646,844.72/2,955.86
  6. Step 6: Final answer
    x = 2,248.70

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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.