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Finding the Fourth Proportional to 3,159.87, 4,730.08 and 2,061.87

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Solution

The fourth proportional to 3,159.87, 4,730.08 and 2,061.87 is: 3,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.87 : 4,730.08 = 2,061.87 : x
  2. Step 2: Convert to fraction form
    3,159.87/4,730.08 = 2,061.87/x
  3. Step 3: Cross multiply
    3,159.87x = 4,730.08 × 2,061.87
  4. Step 4: Simplify right side
    3,159.87x = 9,752,776.09
  5. Step 5: Solve for x
    x = 9,752,776.09/3,159.87
  6. Step 6: Final answer
    x = 3,086.45

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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.