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Finding the Fourth Proportional to 7,303.87, 10,956.39 and 3,143.98

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Solution

The fourth proportional to 7,303.87, 10,956.39 and 3,143.98 is: 4,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,303.87 : 10,956.39 = 3,143.98 : x
  2. Step 2: Convert to fraction form
    7,303.87/10,956.39 = 3,143.98/x
  3. Step 3: Cross multiply
    7,303.87x = 10,956.39 × 3,143.98
  4. Step 4: Simplify right side
    7,303.87x = 34,446,671.03
  5. Step 5: Solve for x
    x = 34,446,671.03/7,303.87
  6. Step 6: Final answer
    x = 4,716.22

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1.5x scale

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.