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Finding the Fourth Proportional to 2,908.00, 4,013.01 and 1,729.05

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Solution

The fourth proportional to 2,908.00, 4,013.01 and 1,729.05 is: 2,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.00 : 4,013.01 = 1,729.05 : x
  2. Step 2: Convert to fraction form
    2,908.00/4,013.01 = 1,729.05/x
  3. Step 3: Cross multiply
    2,908.00x = 4,013.01 × 1,729.05
  4. Step 4: Simplify right side
    2,908.00x = 6,938,679.89
  5. Step 5: Solve for x
    x = 6,938,679.89/2,908.00
  6. Step 6: Final answer
    x = 2,386.06

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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.