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Finding the Fourth Proportional to 5,309.89, 7,964.62 and 1,800.16

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Solution

The fourth proportional to 5,309.89, 7,964.62 and 1,800.16 is: 2,700.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.89 : 7,964.62 = 1,800.16 : x
  2. Step 2: Convert to fraction form
    5,309.89/7,964.62 = 1,800.16/x
  3. Step 3: Cross multiply
    5,309.89x = 7,964.62 × 1,800.16
  4. Step 4: Simplify right side
    5,309.89x = 14,337,590.34
  5. Step 5: Solve for x
    x = 14,337,590.34/5,309.89
  6. Step 6: Final answer
    x = 2,700.17

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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.