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Finding the Fourth Proportional to 1,739.79, 2,606.31 and 1,325.88

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Solution

The fourth proportional to 1,739.79, 2,606.31 and 1,325.88 is: 1,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.79 : 2,606.31 = 1,325.88 : x
  2. Step 2: Convert to fraction form
    1,739.79/2,606.31 = 1,325.88/x
  3. Step 3: Cross multiply
    1,739.79x = 2,606.31 × 1,325.88
  4. Step 4: Simplify right side
    1,739.79x = 3,455,654.30
  5. Step 5: Solve for x
    x = 3,455,654.30/1,739.79
  6. Step 6: Final answer
    x = 1,986.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.