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Finding the Fourth Proportional to 2,706.72, 4,060.07 and 654.72

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Solution

The fourth proportional to 2,706.72, 4,060.07 and 654.72 is: 982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.72 : 4,060.07 = 654.72 : x
  2. Step 2: Convert to fraction form
    2,706.72/4,060.07 = 654.72/x
  3. Step 3: Cross multiply
    2,706.72x = 4,060.07 × 654.72
  4. Step 4: Simplify right side
    2,706.72x = 2,658,209.03
  5. Step 5: Solve for x
    x = 2,658,209.03/2,706.72
  6. Step 6: Final answer
    x = 982.08

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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.