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Finding the Fourth Proportional to 1,626.89, 2,440.23 and 701.79

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Solution

The fourth proportional to 1,626.89, 2,440.23 and 701.79 is: 1,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.89 : 2,440.23 = 701.79 : x
  2. Step 2: Convert to fraction form
    1,626.89/2,440.23 = 701.79/x
  3. Step 3: Cross multiply
    1,626.89x = 2,440.23 × 701.79
  4. Step 4: Simplify right side
    1,626.89x = 1,712,524.09
  5. Step 5: Solve for x
    x = 1,712,524.09/1,626.89
  6. Step 6: Final answer
    x = 1,052.64

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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.