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Finding the Fourth Proportional to 4,966.60, 7,450.71 and 1,679.89

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Solution

The fourth proportional to 4,966.60, 7,450.71 and 1,679.89 is: 2,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,966.60 : 7,450.71 = 1,679.89 : x
  2. Step 2: Convert to fraction form
    4,966.60/7,450.71 = 1,679.89/x
  3. Step 3: Cross multiply
    4,966.60x = 7,450.71 × 1,679.89
  4. Step 4: Simplify right side
    4,966.60x = 12,516,373.22
  5. Step 5: Solve for x
    x = 12,516,373.22/4,966.60
  6. Step 6: Final answer
    x = 2,520.11

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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.