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Finding the Fourth Proportional to 3,569.73, 5,351.51 and 1,379.99

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Solution

The fourth proportional to 3,569.73, 5,351.51 and 1,379.99 is: 2,068.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.73 : 5,351.51 = 1,379.99 : x
  2. Step 2: Convert to fraction form
    3,569.73/5,351.51 = 1,379.99/x
  3. Step 3: Cross multiply
    3,569.73x = 5,351.51 × 1,379.99
  4. Step 4: Simplify right side
    3,569.73x = 7,385,030.28
  5. Step 5: Solve for x
    x = 7,385,030.28/3,569.73
  6. Step 6: Final answer
    x = 2,068.79

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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.