Home / 3,730.87-5,149.50-2,159.89

Finding the Fourth Proportional to 3,730.87, 5,149.50 and 2,159.89

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Solution

The fourth proportional to 3,730.87, 5,149.50 and 2,159.89 is: 2,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.87 : 5,149.50 = 2,159.89 : x
  2. Step 2: Convert to fraction form
    3,730.87/5,149.50 = 2,159.89/x
  3. Step 3: Cross multiply
    3,730.87x = 5,149.50 × 2,159.89
  4. Step 4: Simplify right side
    3,730.87x = 11,122,353.56
  5. Step 5: Solve for x
    x = 11,122,353.56/3,730.87
  6. Step 6: Final answer
    x = 2,981.17

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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.