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Finding the Fourth Proportional to 2,110.78, 3,166.64 and 650.06

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Solution

The fourth proportional to 2,110.78, 3,166.64 and 650.06 is: 975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.78 : 3,166.64 = 650.06 : x
  2. Step 2: Convert to fraction form
    2,110.78/3,166.64 = 650.06/x
  3. Step 3: Cross multiply
    2,110.78x = 3,166.64 × 650.06
  4. Step 4: Simplify right side
    2,110.78x = 2,058,506.00
  5. Step 5: Solve for x
    x = 2,058,506.00/2,110.78
  6. Step 6: Final answer
    x = 975.23

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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.