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Finding the Fourth Proportional to 3,585.86, 4,948.50 and 1,992.47

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Solution

The fourth proportional to 3,585.86, 4,948.50 and 1,992.47 is: 2,749.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.86 : 4,948.50 = 1,992.47 : x
  2. Step 2: Convert to fraction form
    3,585.86/4,948.50 = 1,992.47/x
  3. Step 3: Cross multiply
    3,585.86x = 4,948.50 × 1,992.47
  4. Step 4: Simplify right side
    3,585.86x = 9,859,737.80
  5. Step 5: Solve for x
    x = 9,859,737.80/3,585.86
  6. Step 6: Final answer
    x = 2,749.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.