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Finding the Fourth Proportional to 1,739.66, 2,606.63 and 1,277.64

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Solution

The fourth proportional to 1,739.66, 2,606.63 and 1,277.64 is: 1,914.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.66 : 2,606.63 = 1,277.64 : x
  2. Step 2: Convert to fraction form
    1,739.66/2,606.63 = 1,277.64/x
  3. Step 3: Cross multiply
    1,739.66x = 2,606.63 × 1,277.64
  4. Step 4: Simplify right side
    1,739.66x = 3,330,328.37
  5. Step 5: Solve for x
    x = 3,330,328.37/1,739.66
  6. Step 6: Final answer
    x = 1,914.36

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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.