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Finding the Fourth Proportional to 4,650.77, 6,973.11 and 1,688.66

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Solution

The fourth proportional to 4,650.77, 6,973.11 and 1,688.66 is: 2,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,650.77 : 6,973.11 = 1,688.66 : x
  2. Step 2: Convert to fraction form
    4,650.77/6,973.11 = 1,688.66/x
  3. Step 3: Cross multiply
    4,650.77x = 6,973.11 × 1,688.66
  4. Step 4: Simplify right side
    4,650.77x = 11,775,211.93
  5. Step 5: Solve for x
    x = 11,775,211.93/4,650.77
  6. Step 6: Final answer
    x = 2,531.88

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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.