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Finding the Fourth Proportional to 1,755.79, 2,633.19 and 659.35

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Solution

The fourth proportional to 1,755.79, 2,633.19 and 659.35 is: 988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.79 : 2,633.19 = 659.35 : x
  2. Step 2: Convert to fraction form
    1,755.79/2,633.19 = 659.35/x
  3. Step 3: Cross multiply
    1,755.79x = 2,633.19 × 659.35
  4. Step 4: Simplify right side
    1,755.79x = 1,736,193.83
  5. Step 5: Solve for x
    x = 1,736,193.83/1,755.79
  6. Step 6: Final answer
    x = 988.84

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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.