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Finding the Fourth Proportional to 1,737.90, 2,606.86 and 439.37

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Solution

The fourth proportional to 1,737.90, 2,606.86 and 439.37 is: 659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.90 : 2,606.86 = 439.37 : x
  2. Step 2: Convert to fraction form
    1,737.90/2,606.86 = 439.37/x
  3. Step 3: Cross multiply
    1,737.90x = 2,606.86 × 439.37
  4. Step 4: Simplify right side
    1,737.90x = 1,145,367.36
  5. Step 5: Solve for x
    x = 1,145,367.36/1,737.90
  6. Step 6: Final answer
    x = 659.05

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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.