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Finding the Fourth Proportional to 5,143.05, 7,097.14 and 2,873.99

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Solution

The fourth proportional to 5,143.05, 7,097.14 and 2,873.99 is: 3,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.05 : 7,097.14 = 2,873.99 : x
  2. Step 2: Convert to fraction form
    5,143.05/7,097.14 = 2,873.99/x
  3. Step 3: Cross multiply
    5,143.05x = 7,097.14 × 2,873.99
  4. Step 4: Simplify right side
    5,143.05x = 20,397,059.53
  5. Step 5: Solve for x
    x = 20,397,059.53/5,143.05
  6. Step 6: Final answer
    x = 3,965.95

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1.5x scale

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.