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Finding the Fourth Proportional to 1,684.62, 2,526.92 and 514.62

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Solution

The fourth proportional to 1,684.62, 2,526.92 and 514.62 is: 771.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.62 : 2,526.92 = 514.62 : x
  2. Step 2: Convert to fraction form
    1,684.62/2,526.92 = 514.62/x
  3. Step 3: Cross multiply
    1,684.62x = 2,526.92 × 514.62
  4. Step 4: Simplify right side
    1,684.62x = 1,300,401.00
  5. Step 5: Solve for x
    x = 1,300,401.00/1,684.62
  6. Step 6: Final answer
    x = 771.93

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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.